rapid github response secures

GitHub Swiftly Responds to High-Severity Security Flaw

GitHub, the prominent software development platform owned by Microsoft, recently demonstrated its unwavering commitment to cybersecurity by swiftly responding to a high-severity security flaw.

This flaw, labeled as CVE-2024-0200, posed a significant risk as it had the potential to compromise user credentials. However, GitHub acted promptly by rotating the affected keys, ensuring the mitigation of any potential damage.

In addition to this, another high-severity vulnerability, CVE-2024-0507, was also addressed and resolved by GitHub. Although there is no evidence of these vulnerabilities being exploited beyond internal testing, GitHub's decisive action underscores the importance of vulnerability discovery and response in maintaining the security of sensitive services.

This incident raises intriguing questions about the impact of such vulnerabilities on key services like GitHub Actions, GitHub Codespaces, and Dependabot, leaving readers eager to explore the subsequent details and implications.

Key Takeaways

  • GitHub discovered a high-severity security flaw, CVE-2024-0200, which could have allowed threat actors to steal credentials.
  • GitHub swiftly rotated potentially exposed keys, including commit signing key and customer encryption keys, to mitigate the vulnerability.
  • Users relying on these keys need to import the newly generated ones to avoid disruption.
  • The vulnerability is fixed in patched versions 3.8.13, 3.9.8, 3.10.5, and 3.11.3 of GitHub Enterprise Server.

Vulnerability Discovery and Response

Vulnerability discovery and response plays a crucial role in maintaining the security and integrity of software systems. Proactive vulnerability scanning is of utmost importance to identify and address potential vulnerabilities before they can be exploited by threat actors. It allows organizations to stay one step ahead in safeguarding their software systems.

Implementing best practices for rotating encryption keys is essential to prevent unauthorized access and protect sensitive data. Regularly rotating encryption keys helps mitigate the risk of compromise and ensures that even if one key is compromised, the impact is minimized.

Impact and Mitigation of the Vulnerability

Maintaining the security and integrity of software systems requires a thorough understanding of the impact and effective mitigation strategies for discovered vulnerabilities.

In response to the high-severity security flaw (CVE-2024-0200) discovered on GitHub, measures were promptly taken to prevent unauthorized access and mitigate the impact. GitHub swiftly rotated potentially exposed keys, including commit signing key and customer encryption keys, and fixed the vulnerability in patched versions 3.8.13, 3.9.8, 3.10.5, and 3.11.3 of GitHub Enterprise Server.

It is important to note that the vulnerability requires an attacker to have an authenticated user account with organization owner privileges on the targeted GitHub Enterprise Server instance. There is no evidence of the flaw being exploited outside of internal testing, further highlighting the importance of a prompt response to security vulnerabilities.

Key Services Affected by the Vulnerability

services impacted by vulnerability

GitHub Actions, GitHub Codespaces, and Dependabot are critical services that have been affected by the high-severity security vulnerability discovered on GitHub. To protect these sensitive services, GitHub took precautionary measures, including rotating customer encryption keys. Users relying on these keys need to import the newly generated ones to avoid disruption.

Additionally, the vulnerability did not directly impact GitHub Enterprise Server Management Console users with editor role privileges. Another vulnerability, CVE-2024-0507, only affected GitHub Enterprise Server Management Console users with editor role privileges.

The timely response to this vulnerability highlights the importance of promptly addressing security flaws to minimize the potential impact on key services. By taking precautionary measures and swiftly responding, GitHub has demonstrated its commitment to protecting sensitive services and ensuring the security of its platform.

Reflection Injection and Remote Code Execution

The presence of unsafe reflection in GitHub Enterprise Server can lead to the occurrence of reflection injection, which in turn can enable remote code execution in certain circumstances. To prevent reflection injection and remote code execution, security measures should be implemented.

Some potential discussion ideas about this subtopic are as follows:

  1. Security measures to prevent reflection injection and remote code execution:
  • Implement input validation and sanitization to ensure that user input is properly handled.
  • Use secure coding practices and frameworks that minimize the risk of reflection injection.
  • Regularly update and patch software to address any known vulnerabilities.
  1. Best practices for handling and securing reflection in software development:
  • Only use reflection when necessary and avoid unnecessary exposure of sensitive information.
  • Limit the privileges and permissions associated with reflection to minimize the potential impact of any vulnerabilities.
  • Implement strong access controls to ensure that only authorized users can access reflection capabilities.

Additional Information and Resources

textual analysis and research

Cybersecurity professionals can find valuable resources and stay up-to-date on industry events through various channels. Some of these channels include:

  • GitHub Security Advisories: GitHub regularly publishes security advisories to alert users about vulnerabilities and provide information on how to mitigate them. This is a valuable resource for staying informed about the latest security issues.
  • Microsoft Security Response Center (MSRC): As GitHub is now owned by Microsoft, the MSRC is another important resource for cybersecurity professionals. It provides information on vulnerabilities, patches, and best practices for securing Microsoft products and services.
  • Cybersecurity Conferences: Attending conferences such as the Cyber Security & Cloud Expo, IoT Tech Expo, Digital Transformation Week, and Cloud Transformation Conference can provide valuable insights into the latest trends and developments in cybersecurity.
  • Online Communities and Forums: Participating in online communities and forums dedicated to cybersecurity can provide opportunities to network with industry professionals, share knowledge, and stay updated on the latest security threats and mitigation strategies.

Frequently Asked Questions

How Was the High-Severity Security Flaw, Cve-2024-0200, Discovered by Github?

The high-severity security flaw, CVE-2024-0200, was discovered by GitHub through their discovery process and subsequent impact assessment. Details regarding the specific discovery methods have not been provided.

Are There Any Known Instances of the Vulnerability Being Exploited Outside of Internal Testing?

No known instances of the vulnerability CVE-2024-0200 being exploited outside of internal testing have been reported. GitHub swiftly responded to the security flaw, rotating potentially exposed keys and fixing the vulnerability in patched versions.

What Actions Did Github Take to Address the Vulnerability and Mitigate Its Impact?

GitHub swiftly addressed the high-severity security flaw by rotating potentially exposed keys and releasing patched versions of GitHub Enterprise Server. The impact was mitigated as the vulnerability required specific privileges to exploit.

Were Any Other Services or Platforms Affected by the Vulnerability Besides Github Enterprise Server?

Other affected platforms include GitHub Actions, GitHub Codespaces, and Dependabot. The vulnerability did not directly impact GitHub Enterprise Server Management Console users with editor role privileges. The impact of the vulnerability was mitigated by GitHub's rotation of potentially exposed keys.

Can You Provide More Information About the Upcoming Events Related to Cybersecurity and Cloud Technology Mentioned in the Article?

Upcoming cybersecurity and cloud technology events include Cyber Security & Cloud Expo, IoT Tech Expo, Digital Transformation Week, and Cloud Transformation Conference. GitHub swiftly responded to a high-severity security flaw by rotating potentially exposed keys and releasing patched versions of GitHub Enterprise Server.

Conclusion

In conclusion, GitHub's swift response to the high-severity security flaw highlights the importance of timely vulnerability discovery and response in safeguarding sensitive services.

By promptly addressing the vulnerabilities and providing patched versions, GitHub has demonstrated its commitment to maintaining a secure platform for its users.

This incident serves as a reminder of the constant vigilance required to protect against potential threats and showcases the crucial role of cybersecurity in today's digital landscape.

Like a well-trained guard dog, GitHub remains vigilant in defending its users' data.

webgpu transforms chrome graphics

Chrome 121 Revolutionizes Graphics Performance With Webgpu

With the release of Chrome 121, a significant breakthrough in graphics performance has been achieved through the integration of WebGPU support. This cutting-edge technology, developed by Google, grants developers unparalleled access to GPU hardware, facilitating the creation of high-performance 3D graphics and general-purpose computing.

In this discussion, we will explore the various advancements that Chrome 121 brings to the table, including improved shader compilation, precise GPU command execution measurement through timestamp queries, and simplified shader module creation.

These enhancements not only elevate the developer experience but also hold the promise of revolutionizing graphics performance in the web environment.

Key Takeaways

  • WebGPU support is now enabled by default in Chrome 121, providing low-level access to GPU hardware for high-performance 3D graphics and general-purpose computing.
  • WebGPU support is currently available on devices running Android 12 or later with Qualcomm and ARM GPUs, with plans to expand to more Android devices in the future.
  • Chrome now uses Microsoft's DirectX Compiler (DXC) instead of the FX Compiler (FXC) for shader compilation on Windows devices with DirectX 12 and SM6+ graphics hardware, resulting in a 20% average increase in compilation speeds.
  • Chrome 121 introduces timestamp queries, allowing developers to measure GPU command execution with nanosecond precision, which is useful for profiling the performance of WebGPU apps.

Webgpu Support in Chrome 121

WebGPU support in Chrome 121 revolutionizes graphics performance by providing low-level access to GPU hardware for high-performance 3D graphics and general-purpose computing. This enhancement allows developers to harness the full potential of GPUs, resulting in improved rendering capabilities and faster execution of complex computations.

The adoption rate of WebGPU is expected to increase rapidly, as it offers significant performance benefits compared to previous graphics APIs. Moreover, WebGPU is designed to be compatible with different GPUs, ensuring broad accessibility and ease of integration across various hardware platforms. This compatibility enables developers to create applications that can run efficiently on a wide range of devices, further driving the widespread adoption of WebGPU.

With its low-level access and compatibility, WebGPU in Chrome 121 opens up new possibilities for advanced graphics rendering and computational tasks, empowering developers to create immersive experiences and high-performance applications.

Improved Shader Compilation

The adoption of Chrome 121's improved shader compilation significantly enhances graphics rendering performance for developers using Windows devices with DirectX 12 and SM6+ graphics hardware. Chrome now utilizes Microsoft's DirectX Compiler (DXC) instead of the FX Compiler (FXC) to compile shaders, resulting in faster shader compilation times. DXC provides an average increase of 20 percent in shader compilation speeds compared to FXC. This improvement enhances the performance of graphics rendering in Chrome, allowing developers to experience improved efficiency when developing web apps. The switch to DXC is specific to Windows devices with DirectX 12 and SM6+ graphics hardware. By optimizing shader compilation, Chrome 121 enhances graphics rendering, providing developers with a smoother and more efficient experience.

Improved Shader Compilation
Faster shader compilation
Enhanced graphics rendering

Timestamp Queries for GPU Command Execution

gpu timestamp query commands

Chrome 121 introduces support for timestamp queries, allowing developers to precisely measure GPU command execution down to the nanosecond. This feature is instrumental in enabling profiling and performance analysis of WebGPU apps.

By measuring the exact time it takes for GPU commands to execute, developers can identify bottlenecks and optimize their code accordingly. The precision of timestamp queries is quantized to 100 microseconds by default, but this quantization can be disabled via a browser flag for more precise measurements.

With timestamp queries, developers can gain deep insights into the performance characteristics of their GPU workload and make informed decisions to improve efficiency.

This new capability empowers developers to fine-tune their applications and deliver highly optimized and performant graphics experiences to users.

Simplified Shader Module Creation

With the introduction of simplified shader module creation in Chrome 121, developers can now streamline the process of creating shader modules, eliminating the need for explicit entry point definitions in certain scenarios. This enhancement is achieved through automatic entry point inference, where the entry point is automatically inferred if only one is defined in the shader code.

This simplifies the shader module creation process and reduces code complexity for developers. By removing the requirement for explicit entry point definitions, developers can save time and effort in their shader module creation workflow.

This enhancement in Chrome 121 enhances the overall developer experience and makes it easier for developers to create efficient and optimized shader modules for their web apps.

Improved Developer Experience

streamlined development process enhancement

Enhanced memory heap information assists developers in optimizing GPU resource allocation for improved performance and stability of WebGPU apps.

With the new updates in Chrome 121, developers can now access detailed memory heap information through the requestAdapterInfo() function.

This information provides valuable insights into the available memory heaps on the GPU adapter, allowing developers to anticipate potential memory limitations and make informed decisions when allocating resources.

By optimizing resource allocation based on the available memory heaps, developers can enhance memory management, resulting in better performance and stability of WebGPU apps.

The detailed memory heap information not only enhances the developer experience but also enables them to efficiently utilize GPU resources, ultimately leading to more efficient and powerful graphics rendering.

Additional Optimizations for Webgpu Performance

To further optimize WebGPU performance, additional enhancements have been implemented. One of these enhancements is optimizing GPU resource usage, which helps improve overall performance. By optimizing GPU resource usage, developers can allocate resources more efficiently, resulting in better utilization of the GPU's capabilities. This optimization ensures that the GPU is not underutilized or overwhelmed, leading to smoother and faster graphics rendering.

Another enhancement is the enhancement of memory management. With improved memory management, developers can better anticipate and handle potential memory limitations when allocating resources. This information assists developers in optimizing resource allocation based on the available memory heaps. By efficiently managing memory, WebGPU apps can achieve better performance and stability.

These additional optimizations for WebGPU performance, including optimizing GPU resource usage and enhancing memory management, contribute to a more efficient and smoother graphics performance in Chrome 121.

Future Prospects for Webgpu in Chrome

webgpu in chrome s future

The future prospects for WebGPU in Chrome hold promise for further advancements in graphics performance and enhanced capabilities for developers. With ongoing development and improvements, WebGPU in Chrome is expected to provide the following benefits and overcome certain limitations:

  • Improved Graphics Performance: WebGPU will continue to optimize graphics rendering, allowing for faster and more efficient rendering of complex 3D graphics in web applications.
  • Cross-Platform Compatibility: As support expands to more Android devices and other platforms, WebGPU will enable developers to create high-performance graphics that can run seamlessly across different devices and operating systems.
  • Enhanced Developer Tools: Future versions of Chrome may introduce additional tools and features that simplify the development process and provide better debugging and profiling capabilities for WebGPU applications.
  • Broader Adoption: With Chrome being one of the most widely used web browsers, the integration of WebGPU will encourage more developers to utilize this powerful technology, leading to a wider adoption and increased innovation in web graphics.

While the future prospects for WebGPU in Chrome are promising, it is important to note that there may still be limitations and challenges to overcome, such as compatibility issues with older devices and potential performance variations across different GPU architectures. However, with continued development and community support, these limitations can be addressed, making WebGPU a key technology for pushing the boundaries of web graphics.

Frequently Asked Questions

What Are the System Requirements for Enabling Webgpu Support in Chrome 121?

System requirements for enabling WebGPU support in Chrome 121 include running Android 12 or later on devices powered by Qualcomm and ARM GPUs. Support will expand to more Android devices, including those on Android 11, pending further testing and optimization across different hardware.

Does the Switch to Microsoft's Directx Compiler (Dxc) Affect Shader Compilation on Non-Windows Devices?

The switch to Microsoft's DirectX Compiler (DXC) in Chrome 121 significantly impacts shader compilation on non-Windows devices. However, as the question pertains to the impact on shader compilation, it is important to note that DXC is specific to Windows devices with DirectX 12 and SM6+ graphics hardware. This change leads to performance improvements in Chrome 121, with a 20 percent average increase in shader compilation speeds over the previous FX Compiler (FXC).

How Can Developers Disable the Quantization of Timestamp Queries in Chrome 121?

To optimize timestamp queries in Chrome 121, developers can disable the quantization by using a browser flag. However, it is important to note that disabling quantization may impact graphics performance.

Are There Any Limitations or Scenarios Where Developers Still Need to Explicitly Define Entry Points in Shader Module Creation?

In certain scenarios, developers still need to explicitly define entry points in shader module creation, such as when multiple entry points are present in the shader code. However, the automatic inference of entry points reduces code complexity and simplifies the process.

Apart From Memory Heap Information, What Other Improvements Have Been Made to the Developer Experience in Chrome 121 Regarding Webgpu?

Improvements in Chrome 121's developer experience with WebGPU include simplified shader module creation, faster shader compilation using Microsoft's DXC, precise measurement of GPU command execution with timestamp queries, and detailed information about memory heaps for optimized resource allocation. These enhancements lead to improved performance and stability.

Conclusion

In conclusion, Chrome 121's introduction of WebGPU support and improved shader compilation significantly enhance graphics performance for developers.

The ability to access low-level GPU hardware and measure GPU command execution with precision allows for better optimization and efficiency in web applications.

Despite these advancements, some may argue that the reliance on specific devices and graphics hardware limits the widespread adoption of these features.

However, as Chrome continues to expand support to more Android devices, the potential for revolutionizing graphics performance remains promising.

revolutionary app development for apple s vision pro

Unity Revolutionizes App Development for Apple's Vision Pro

The collaboration between Unity and Apple in revolutionizing app development for Apple's Vision Pro spatial computing headset has garnered significant attention from developers and industry leaders alike. With Unity's powerful development tools and workflow, creators now have the capability to build immersive experiences that fully utilize the advanced capabilities of the Vision Pro.

Already, leading studios such as Light Brick Studios and Resolution Games have experienced success with Unity's support, leveraging it to bring their renowned workflows and popular titles to this cutting-edge platform.

But it doesn't stop there. Unity's visionOS support has also extended its reach beyond gaming, with industries ranging from automotive to wellness and entertainment tapping into Unity's comprehensive tools for creating innovative applications for the Vision Pro.

With Unity's commitment to spatial computing and its position as the first third-party platform to offer visionOS support, the potential for app development on the Vision Pro is limitless.

Key Takeaways

  • Unity has officially launched tools and support for Apple's Vision Pro spatial computing headset, allowing developers to build immersive experiences using Unity's development tools and workflow.
  • Light Brick Studios, a studio founded by former LEGO designers, will be launching their critically acclaimed LEGO Builders Journey game on the Vision Pro with the help of Unity's support, showcasing the capabilities of the headset.
  • Resolution Games, known for popular VR games like Demeo and Blaston, is building a Vision Pro launch title with Unity, taking advantage of Unity's multi-platform support and comprehensive tools for spatial computing development.
  • Unity's visionOS support is not limited to gaming and is being embraced by other industries such as automaker Audi, the TRIPP meditation app, and comedy studio Triband, demonstrating the versatility of Unity's support for innovative applications of the Vision Pro in different sectors.

Unity's Support for Apple's Vision Pro

Unity's support for Apple's Vision Pro revolutionizes app development by providing developers with the tools and resources to create immersive experiences for the spatial computing headset. Through Unity's collaboration with Apple on visionOS development, they have expanded the capabilities of the Vision Pro headset.

Unity's templates, samples, and resources enable developers to tap into the headset's potential using Unity's PolySpatial technology. The collaboration between Unity and Apple began with a beta program, granting creators early access to building apps for the Vision Pro. This support has been instrumental in bringing Light Brick Studios' critically acclaimed LEGO Builders Journey game to the Vision Pro.

Unity's support not only unlocks a completely new type of interaction and rendering paradigm but also allows for seamless transitioning of existing games to the Vision Pro. The partnership between Unity and Apple showcases the capabilities of the Vision Pro headset and demonstrates Unity's commitment to advancing spatial computing.

Light Brick Studios' Experience With Unity

Light Brick Studios, a renowned studio founded by former LEGO designers, has found Unity's support instrumental in bringing their critically acclaimed LEGO Builders Journey game to the Vision Pro headset.

Unity's impact on LEGO Builders Journey has been significant, as it has enabled Light Brick Studios to seamlessly transition their well-known workflow to this new type of system. With Unity's support, Light Brick Studios has been able to unlock new interaction paradigms for the Vision Pro, taking full advantage of its unique capabilities.

As one of the first studios to deliver groundbreaking spatial computing apps for the Vision Pro, the collaboration between Light Brick Studios and Unity showcases the potential and capabilities of this innovative headset. Through their partnership, Unity has proven its commitment to supporting developers in the new era of spatial computing.

Resolution Games' Partnership With Unity

collaboration between resolution games and unity

As the momentum of Unity's support for the Vision Pro continues, another notable partnership is forming in the realm of spatial computing development. Unity has collaborated with Resolution Games, a well-known maker of popular VR games, to build a Vision Pro launch title.

This partnership highlights Unity's significant role in the gaming industry and its commitment to pushing the boundaries of spatial computing. With Unity's multi-platform support and comprehensive tools for spatial computing development, Resolution Games can leverage their experience to create immersive experiences for the Vision Pro.

Unity's support also helps in transitioning existing games to the Vision Pro and takes advantage of its unique capabilities. The collaboration between Resolution Games and Unity showcases the potential of the Vision Pro in the gaming industry, further solidifying Unity's position as a leading provider of development tools for spatial computing.

Unity's Impact Across Various Industries

The adoption of Unity's visionOS support spans across various industries, showcasing the versatility and innovative applications of the Vision Pro headset.

Unity's impact on immersive experiences and its role in driving innovation are evident as different sectors embrace the capabilities of the Vision Pro.

Automaker Audi is utilizing Unity's visionOS support to create an interactive Virtual Exhibit XR, allowing users to explore the technology in their vehicles.

The TRIPP meditation app is leveraging Unity's support to provide users with an immersive and transformative experience.

Comedy studio Triband is bringing its popular game, What The Golf, to the Vision Pro with Unity's assistance.

These examples demonstrate that Unity's visionOS support is not limited to gaming but is being embraced by various industries, highlighting the versatility and potential of the Vision Pro in different sectors.

Unity's Commitment to Spatial Computing

unity s dedication to spatial computing

Unity's commitment to spatial computing is evident through its collaboration with Apple and its support for the Vision Pro headset. Unity's visionOS support benefits developers by providing them with the necessary tools and workflow to build immersive experiences for the Vision Pro.

Here are five key points that highlight Unity's role in advancing spatial computing:

  • Unity's templates, samples, and resources enable developers to tap into the capabilities of the Vision Pro using Unity's PolySpatial technology.
  • Unity collaborated with Apple on a beta program, granting creators early access to building apps for the Vision Pro, showcasing their dedication to pushing the boundaries of spatial computing.
  • Light Brick Studios, known for their critically acclaimed LEGO Builders Journey game, leveraged Unity's support to bring their workflow to this new system, unlocking the Vision Pro's unique interaction and rendering paradigm.
  • Resolution Games, the maker of popular VR games, is developing a Vision Pro launch title with Unity, benefiting from Unity's multi-platform support and comprehensive tools for spatial computing development.
  • Unity's visionOS support extends beyond gaming, with industries like automotive (Audi), meditation (TRIPP app), and comedy (Triband) embracing the possibilities of the Vision Pro with Unity's support.

Unity's commitment to spatial computing is driving innovation and empowering developers to create groundbreaking experiences with the Vision Pro headset.

Conclusion

In summary, Unity's support for Apple's Vision Pro headset revolutionizes app development for spatial computing, opening up new possibilities and empowering developers across various industries to create immersive experiences.

The significance of Unity's partnership with Apple for spatial computing development cannot be overstated. By providing developers with the tools and workflow to build immersive experiences for the Vision Pro, Unity is enabling the creation of groundbreaking apps that harness the potential of the headset.

The Vision Pro has the potential to revolutionize app experiences with its unique capabilities, and Unity's support ensures that developers can fully leverage these features.

Whether it's in the gaming industry, automotive sector, or even the world of meditation apps, Unity's support for visionOS is being embraced by various industries.

This collaboration between Unity and Apple demonstrates Unity's commitment to shaping the future of spatial computing.

Frequently Asked Questions

How Does Unity's Support for Apple's Vision Pro Differ From Other Development Tools?

Unity's support for Apple's Vision Pro differs from other development tools by offering a comprehensive set of tools and workflows specifically designed for immersive experiences on the Vision Pro. It can be used for non-gaming applications, as demonstrated by its adoption in industries like automotive, meditation, and entertainment.

Can Unity's Support for the Vision Pro Be Used for Non-Gaming Applications?

Unity's support for the Vision Pro extends beyond gaming, with potential applications in various industries. The versatility of Unity's visionOS support enables non-gaming possibilities, as seen in Audi's virtual exhibit, TRIPP's meditation app, and Triband's What The Golf game.

What Are Some of the Unique Capabilities of the Vision Pro That Unity's Support Unlocks?

Unity's support for the Vision Pro unlocks unique capabilities such as interactive experiences and augmented reality. With Unity's tools and workflow, developers can tap into the headset's capabilities and create immersive apps that revolutionize app development for Apple's Vision Pro.

Are There Any Limitations or Requirements for Developers to Access Unity's Support for the Vision Pro?

There are no specific limitations or requirements for developers to access Unity's support for the Vision Pro. Unity 2022 LTS offers visionOS support to all Unity Pro, Enterprise, and Industry subscribers, facilitating app development for the headset.

How Does Unity's Collaboration With Apple in the Beta Program Benefit Developers Using the Vision Pro?

The collaboration between Unity and Apple in the beta program benefits developers using the Vision Pro by providing early access to building apps, leveraging Unity's development tools and workflow, and tapping into the unique capabilities of the headset.

Conclusion

In conclusion, Unity's support for Apple's Vision Pro has revolutionized app development for this cutting-edge technology. With Unity's development tools and workflow, developers now have the ability to build immersive experiences for the Vision Pro, expanding its capabilities and applications across various industries.

The collaboration between Unity and Apple has already yielded successful results for leading studios such as Light Brick Studios and Resolution Games. As the first third-party platform to offer visionOS support, Unity's commitment to spatial computing opens up limitless possibilities for app development on the Vision Pro. Its impact is truly transformative.

github explained

Github: everything you need to know about the code hosting platform

Github is a website that provides a cloud service for developers to store and manage their code. It also includes monitoring and control of changes made to it. Today, it is one of the most popular ways to host open source projects and share content. Whether you want to retrieve source code from the website, transfer it to a local machine or develop your Android application, there are many projects supported by the site. Github has several features that may be of interest to many.

This article gives you an overview of Github and shows how to use it. By the end of this tutorial, you will be able to create your repository, both local and remote, and transfer files from a local to a public repository. In addition, we will also show you how to create multiple branches within a single repository to contribute to any project hosted on Github.

What is Github?

As mentioned above, Github hosts and shares projects and allows you to contribute to others’ projects. The site supports all programming languages and file types, including images, videos, spreadsheets, and even text files. Although the trend suggests that Github specializes in software development, the platform also hosts projects that do not necessarily contain code. For example, Microsoft uses the site to store all its documentation on Azure.

On the other hand, the watchword of the website is “collaboration.” It challenges developers to collaborate on a project, whether working in groups or with other members. Alternatively, they can collaborate with people who want to work on a particular project and want to help. The platform is open to suggestions, and anyone can raise issues. Some manage to provide new ideas on how the site should work or contribute code to someone else’s project. By hosting your project, Github gives you a whole new team of contributors.

Differences between Git and Github

The two terms are often used next to each other and sometimes even confused, although they are different. Indeed, Git refers to a distributed version control tool that can work equally well on a computer. It is used to manage the history of the sources of your project. As for Github, it is the cloud platform built around the Git tool. Otherwise, Git is used to connect to Github to perform tasks like pushing or pulling code.

Note that cloud hosting services, such as Github, are used with Git, while Git can work without Github. There is no need to create an account to perform version control and work collaboratively.

Advantages of GitHub

Using GitHub has several significant advantages. First of all, this platform facilitates project management. Developers and project managers can collaborate, update work, and track changes to gain transparency and meet deadlines.

Packages also increase security, as they can be shared privately, within a team, or directly with the open source community. Packages can be downloaded from GitHub for use or reuse.

Another strong point of GitHub is team management. All team members can stay organized and synchronized, and various moderation tools are provided to keep everyone focused.

Pull requests help develop and propose new code and review it. Team members can debate implementations and proposals before changing the source code.

Various tools to identify and analyze vulnerabilities in the code also make it more secure. Throughout the software supply chain, the code is protected. Finally, the fact that the code and documentation are hosted in the same place is very convenient.

The disadvantages of Github

Although it is a beneficial tool for building websites and creating beautiful blogs, Github also has several drawbacks.

Security

GitHub does not offer private repositories. For high-value intellectual property, this puts the entire process in the hands of GitHub. In addition, anyone with a login can connect to GitHub, which creates the risk of security breaches. Moreover, like many sites, GitHub is constantly targeted by hackers. Some clients/employers only allow code on their own secure internal Git as a principle.

Pricing

Pricing is another potential drawback of GitHub. Some features and online repositories are locked behind a SaaS paywall, and some functionality and online repositories are locked behind a paid SaaS portal. For a large team, the price can go up quickly.

Because of the costs, those who already have a dedicated IT team and their internal servers are often better off using their own internal Git system. However, most users do not find the costs outrageous.

Here is a good example of a quality Github account we have been following lately!

ecmascript21

What’s new with JavaScript in 2022 ?

JavaScript is a very popular development language. In this article, we will analyze why it is so popular. We will also talk about some new features in JavaScript following the new features introduced in the ECMAScript2021 standard. These new features allow to reduce the code size and to maximize its efficiency.

JavaScript’s increasing popularity

According to the study conducted by SlashData via its survey State of the Developer Nation, JavaScript is at the top of the ranking of the most used programming languages in the world. The latter has indeed gained more than 5 million followers in less than 3 years and now has more than 12.4 million users. JavaScript is ahead of Python with 9 million users, Java (8.2 million users), C/C++ (6.3 million users), PHP (6.1 million) and C# (6 million).

JavaScript can do virtually anything

JS is a very popular language because of its versatility. With it you can develop any part of the application development chain: Full Stack. You can use JS on any project on any platform. You can develop mobile applications via React Native, Capacitor or Cordova. The applications will have the native features of mobile devices (phone, tablets, etc.)

With ReactJS, VueJS or Angular frameworks, you can build quite advanced web applications. Most web pages on the net use JavaScript to make their content dynamic. Desktop applications are not left out with Electron. You can create software with it. With engines such as Unity, it is possible to create 2D or 3D video games with JavaScript. Famous software is developed in JavaScript, including Slack, Skype, Discord, Visual Studio Code, MailSpring, Atom. And finally, NodeJS is used for different scripts that can run on your PCs and servers.

JavaScript developer and the job market

JavaScript developers are in high demand. According to a study conducted by DevSkiller, nearly 70% of companies need a JavaScript developer. The latter can claim an annual income of more than 40K€ if he works in a company. He can also work as a freelancer with more flexible working hours.

What is the ECMAScript standard?

ECMAScript is a standard on which various programming languages such as JavaScript, ActionScript, JScript or TypeScript are based. It is also a language integrated into web browsers and used in application servers. The standard is standardized by the ECMA International organization. The first edition of the specifications was released in June 1997 and we are in the era of version 2021: ECMAScript21 which has just been approved.

What’s new in JavaScript

JavaScript developers should be aware of the new features supported by JavaScript following the specifications of the ECMAScript 2021 standard.
Let’s see some of these new features.

String.prototype.replaceAll()

ReplaceAll() now allows you to easily change a character or a string in a given document. This question has been asked many times on the forums for JavaScript developers for ages and JavaScript finally includes an easy solution.

Thus, instead of writing :

const test = “this-is-a-test!”;
test.replace(/-/g, “_”)

Or else

this-is-a-test!’.replace(/-/g, “_”)

You can directly write :

const test = “this-is-a-test!”;
test.replaceAll(“-“, “_”)

Or you can write

‘this-is-a-test!’.replaceAll(‘-‘, ‘_’);

Promise.any()

Promise already exists in JavaScript with 3 combinators: Promise.all(), Promise.race(), Promise.allSettled(). But ECMAScript21 introduces a last combiner: the Promise.any(). With the Promise.any() method, as soon as a promise is kept, it sends the value of the promise. If none of the promises are kept, the promise is broken with an AggregateError return, a new subclass of Error. Promise.any() does not behave like Promise.all(). The latter sends the values of all promises if and only if all promises in the iterable are fulfilled.

As an example, this code will send the value of promise2: “fast

const promise1 = Promise.reject(0);
const promise2 = new Promise((resolve) => setTimeout(resolve, 4000, ‘slow’));
const promise3 = new Promise((resolve) => setTimeout(resolve, 1000, ‘fast’));
const promises = [promise1, promise2, promise3];

Promise.any(promises).then((value) => console.log(value));

With Promise.all, the following code will display the values of the 3 promises after 6 seconds of waiting (after all the promises are kept)

const promise1 = new Promise((resolve) => setTimeout(resolve, 6000, ‘very slow’));
const promise2 = new Promise((resolve) => setTimeout(resolve, 4000, ‘slow’));
const promise3 = new Promise((resolve) => setTimeout(resolve, 1000, ‘fast’));
const promises = [promise1, promise2, promise3];

Promise.all(promises).then((value) => console.log(value));

The result would be :

(3)[“very slow”,”slow”,”fast”]

WeakRefs and Finalizers

Two new constructors have been introduced in the WeakRefs proposal. They are WeakRef and FinalizationRegistry. WeakRef or Weak References is used if we don’t want to keep an object in memory for a long time. So, if the program does not refer to the object, the memory will be freed. As for FinalizationRegistry, it is used to make callbacks once the object in memory has been collected.

Logical affection operators

You can combine the logical operators &&, ||, ?? with the assignment operator ‘=’. Thus, we can write

var x = 1;
var y = 2;
x &&= y;

or

var x = 1;
var y = 2;
if(x) {
x = y
}

And directly,

var x = 1;
var y = 2;
x &&= y;

Which will display “2”.

Numeric separators

It consists in introducing the hyphen under 8 (_) as a separator at the level of numbers. It can therefore be used as a separator of thousands to facilitate the reading of large numbers. Thus, this code will display “1500000”:

var separator = 1_500_000;
console.log(separator);

All in all, JavaScript is a very popular language and is not going to disappear any time soon. It is easy to learn and master. Knowing that with it, we can program almost anything, the career opportunities are real.

programming language

Which computer programming languages are trendy at the moment?

In the world of computer programming languages, diversity is the order of the day. There is at least one for every letter of the alphabet! As a beginner, developers are often at a loss when faced with the embarrassment of choice and have difficulty selecting the language that will propel their career. Depending on their interests or ambitions, it is essential to analyze the specific areas in which they wish to work to make an informed choice of the language that best suits them.

The evolution of computer programming languages follows that of the tools available on the web. Each new feature has its language. Procedural, functional or object-oriented programming, frameworks and libraries available or even ease of learning, each of these codes has its characteristics that give it a certain popularity among communities. And as for any language, the fashion is changing… Back to the computer languages that will be in the news in 2020.

The top computer programming languages of tomorrow

Lord of the computer programming languages, JavaScript has been at the top of the ranking for more than 7 years now. Historical and easy to learn, it benefits from an active community that produces numerous frameworks and libraries that are always more complete. The job of react developer in particular is a fashionable specialization that facilitates the creation of single-page web applications and is endorsed by the biggest names in the sector. We will come back to this.

PHP, despite its age, remains one of the darlings of developers. Its vast field of application and its simplicity of use make it one of the most commonly used interpreted scripting languages, notably thanks to its fast execution and foolproof stability. We can also mention Python, which is essential for those who want to work in the field of data science and artificial intelligence, or Swift, the native language that allows you to build IOS applications.

Choosing your language

Faced with the profusion of languages, it is necessary to select one’s own according to a central criterion: the field of application in which you wish to work. In the world of video games, C++ for PC games and C/C++ for consoles are part of the indispensable background to claim a position as a developer within a team. For the web, on the frontend, HTML/CSS and JavaScript remain essential to create a functional graphical interface.

PHP, Ruby or JavaScript (using NodeJS in particular) are the most used for data management for a website. Finally, for beginners, it is important to choose a language that will allow them to justify an attractive profile in the years to come. They should therefore always prefer a recent language (forget COBOL…) and one that can be useful in the expanding fields of artificial intelligence or mobile applications.

Becoming a React developer

Here, we will develop our article more specifically on a software library that could well become a favorite among developers in the years to come. React was created by Facebook in 2013 to allow developers to create single-page web applications. Its scope is only for the interface and it can be used with other libraries or frameworks like Agular for example. Its main asset is its flexibility, which makes the user’s experience more fluid by updating the browser only when necessary.

Chosen by Yahoo, Netflix, Airbnb or Sony to improve the performance of their sites, this free library encourages the creation and reuse of its components. In 2015, its versatility increases further with the release of React Native, a React-indexed framework that allows to create cross IOS and Android applications. Surely, everyone will be talking about React shortly!

microsoft GPT-3

This AI will be able to write programming code from natural language

Microsoft intends to open up application development to everyone, thanks to artificial intelligence. By integrating the GPT-3 linguistic model into its Power Apps, the firm allows the use of natural language to generate lines of code.

The Microsoft Build 2021 conference this week, aimed at developers, was an opportunity to discover the firm’s projects, such as the next generation of Windows. In his opening presentation, Satya Nadella, Microsoft’s CEO, also announced the use of artificial intelligence to assist in programming and allow a “no-code” approach.

This progress is made possible thanks to GPT-3, the largest linguistic model, capable of generating texts thanks to deep learning. GPT-3 is based on a neural network with 175 billion parameters, developed by OpenAI and based on the Transformer model. It will be integrated into Microsoft’s Power Apps to translate natural language into programming code.

Power Fx, a low-code programming language inspired by Excel

It is not about automatically generating entire programs, at least not at the moment. This new system allows to generate lines of code from a description of the desired action. The AI then proposes several possibilities, leaving it up to the user to choose the right one. Microsoft chose to associate it with the Power Fx programming language launched in March and inspired by Microsoft Excel. It is a “low-code” language, in other words, it allows you to create programs with little code.

The goal is to allow more people to create applications without having to master a programming language, and to address a growing shortage of developers. Microsoft has announced early access starting in June, in English only for users in North America.

Laravel 7 is available, a significant version with improvements in routing speed,

The Laravel development team has just released version 7 of the PHP framework a few months after the release of Laravel 6. It’s a significant new version of the framework with many new features, including Laravel Airlock, routing speed improvements, Blade component tags, custom Eloquent cast, a developer-oriented HTTP client, CORS first part support, etc. Here are more details about what the new version of the framework is about.

Fluent String Operations

Laravel’s Illuminate class offers a variety of useful functions for string manipulation. Laravel 7 now provides a more object-oriented and fluid string manipulation library built in addition to these functions. You can create a fluid Illuminateable object using the Str::of method. A variety of methods can then be chained to the object to manipulate the string.

Blade Component Tags and Enhancements

Blade components have been revised to allow tag-based rendering, attribute management, component classes, inline view components, etc. According to the development team, this overhaul of Blade components is significant. As such, you should refer to the complete Blade component documentation to learn more about this feature.

Custom Cast Eloquent

Laravel has a variety of integrated and useful cast types. That said, sometimes, you may need to define your own cast types. Now you can do this by defining a class that implements the CastsAttributes interface. Classes that implement this interface must define a get method and a set method. The get method is responsible for transforming a raw value from the database into a cast value, while the set method must transform a cast value into a raw value that can be stored in the database.

HTTP client

Laravel now provides a minimal and expressive API around the Guzzle HTTP client, allowing you to quickly make outgoing HTTP requests to communicate with other web applications. The Laravel skin around Guzzle focuses on the most common use cases and pleasant development experience.

MySQL 8 Database Queue Improvements

In previous versions of Laravel, the database queue was not considered robust enough for production use, due to blockages. However, Laravel 7 brings improvements to applications using MySQL 8+ as a database queue. By using the FOR UPDATE SKIP LOCKED clause and other SQL enhancements, the database driver can now be safely used in higher volume production applications.

Laravel Airlock

Laravel Airlock provides an ultra-light authentication system for SPAs (single page application), mobile apps, and simple token-based APIs. Airlock allows each user of your app to generate several API tokens on his or her behalf. These tokens can be assigned capabilities/scales that specify the actions the tokens are allowed to perform.

Improved caching speed

Laravel 7 includes a new method for mapping compiled and cached routes that have been cached using the “artisan route:cache” command. On large applications (for example, applications with 800 or more routes), these improvements can result in a speed improvement of about twice the number of requests per second on a simple “Hello World” benchmark. You don’t need to make any changes to your application.

online privacy

Why you need a VPN in 2020

VPN connections are by no means a new invention, but it is now that they are beginning to gain traction among the general public. While traditionally, their use was more common in the business environment, the great versatility of this type of connection, and their multiple applications make them increasingly popular.

But what is a VPN, and what advantages does it bring? That versatility we were talking about is the same that creates some confusion about it. As it is increasingly related to VPN connections with “evil” (with extensive quotes), as some of its applications include the leap of geographical blocks, greater anonymity in the network, or even blocking advertising.

What is a VPN?

Let’s start with the basics. VPN is the acronym for Virtual Private Network or virtual private network, which, unlike other more cryptic computer words such as DNS or HTTP, does give us quite precise clues as to what they consist of.

The keyword here is virtual because it is this property that generates the need for the VPN itself, as well as the one that allows VPN connections to offer you the multiple uses that we will see later.

To connect to the Internet, your mobile, PC, TV, and other devices generally communicate with the router or modem that connects your home to your Internet provider, either by cable or wirelessly. The components are different if you are using your mobile’s data connection (which includes its modem and talks to the telephone antenna). Still, the essence is the same: your device connects to another, which connects it to the Internet.

What are VPN connections for?

With the explanations above, you’ve probably already imagined a few situations in which VPN connections might be useful. It’s an open secret that they are especially crucial in the corporate environment, but their uses don’t end there at all. These are the primary uses of VPN connections.

Teleworking

The most apparent use of a VPN connection is interconnectivity in networks that are not physically connected, such as workers who are currently away from the office or companies with branches in several cities that need access to a single private network.

From a security point of view, allowing random access to a company’s network from the Internet is nothing short of insane. Even if access is password-protected, it could be captured at a public WiFi hotspot or sighted by a malicious observer.

Avoid censorship and geographic content blocks

With the heyday of the Internet and the picaresque of both content providers and users, other more playful uses of VPN connections have become popular, many of them related to a straightforward concept: misrepresenting where you are.

When you connect to a VPN, your device communicates with the VPN server, and it is the server that talks to the Internet. If you are in China and the VPN server is in the United States, generally, the web servers will believe that you are surfing from this country, allowing you to access the contents available only there, such as Netflix.

Similarly, this same logic can be used to access content that was censored or blocked in your country, but not where the VPN server is located. It is how millions of Chinese citizens manage to connect to Facebook and 3,000 other websites blocked in the country. This is best explained by this website Generation NT.

An extra layer of security

Although it is not strictly necessary, it is common for VPN connections to come with an encryption of the packets transmitted with them. It is normal to hear the recommendation that, if you need to connect to a public WiFi access point, at least use a VPN connection.

Logging in to your bank accounts while connected to a public WiFi network that you don’t trust is probably not the best idea in the world, as it’s relatively easy for a thief to capture packets unencrypted and get hold of your user accounts. It is where the extra layer of security that you can get through a VPN connection comes in, as the packets would be sent encrypted, so the listener probably couldn’t do anything with them.

P2P Downloads

Another everyday use of VPN connections is found in P2P downloads, which these days is generally synonymous with downloading from BitTorrent. Before you put a patch on my eye, a wooden leg, and force me to go through the keel, VPN connections also have used in P2P downloads even if you download completely legal torrents.

Unfortunately, it is common that Internet providers decide to stick their noses in how we send and receive zeros and ones on the Net. Although they love that we visit official web pages, that we download is not so funny: too much traffic, and you’re probably downloading something illegally.

Some providers completely block P2P downloads, while others boycott it to malfunction and give up on your own. Just as you can use a VPN connection to avoid censorship of your country, you can also sometimes prevent your ISP from boycotting your P2P downloads.

Advantages of VPN connections

Now that we know what a VPN connection is and what it’s for, it’s time to summarize a list of the advantages and disadvantages of using this technology. First, the positive side:

It works in all applications, because it routes all Internet traffic, unlike proxy servers, which you can only use in the web browser and a handful of other apps that let you configure the advanced connection options.

It connects and disconnects easily. Once configured, you can activate and deactivate the connection at will.

Additional security at WiFi access points, as long as the connection is encrypted, of course.

False of your location, as we have already seen in the previous section, a VPN connection is an effective way to avoid censorship or access content limited to a particular region.

Your Internet provider can’t know what you do on the Internet. Don’t you want your Internet provider to see that you spend hours watching videos of kittens on YouTube? With a VPN, they won’t know what you do, but be careful, the company that manages the VPN will.

Google achieved quantum supremacy

Quantum computer: Has Google achieved quantum supremacy?

It has been making quite a buzz in the last few days in the global news. It all started on 20 September 2019 with an article published in The Financial Times, a British economic and financial daily. One might be surprised that it is in this journal that a supposed revolutionary breakthrough in the field of mythical quantum computers is announced if it were not for Google. Above all, it has been said for years that these computers could easily break the codes on our credit cards, not to mention the fact that they could revolutionize scientific computing, for example, to develop entirely new drugs. 

In this case, The Financial Times reports a document written by Eleanor Rieffel, now missing from a NASA site but of which a complete copy can be found with the title Quantum Supremacy Using a Programmable Superconducting Processor, concluding that the Quantum AI Lab research team, led by John Martinis, would have eventually reached the Graal of Quantum Supremacy. 

Would John Martinis have operated a quantum computer – which is not a universal programmable quantum computer that can potentially run any algorithm of reasonable size for its memory and computing capacity – to perform in about 200 seconds a calculation that would require about 10,000 years on a conventional supercomputer, of the kind available to NASA and which can serve as a point of comparison? 

Sycamore, a calculator and not a quantum computer

Google’s quantum computer would be called Sycamore and would have more than 50 qubits (54 precisely and 53 would have been used). He would specialize in the simulation of what is called a random quantum circuit capable of handling 50 qubits. A random quantum circuit is an assembly of a random choice of quantum logic gates. All this remains to be confirmed, and for the time being, neither Google nor NASA is responding to any media messages on this subject, invalidating or confirming anything as a result. 

If the results announced are real, a significant step forward would have been taken, but we would still be a long way from a real revolution. It should be remembered that it is always difficult to combat the phenomenon of quantum decoherence, even with corrective codes, which quickly makes calculations carried out with a relatively large number of qubits imperfect or even impossible. However, it would take a lot to beat conventional computers in the majority of the tasks where they are used. 

Moreover, we know that there is no guarantee that a quantum algorithm to solve a particular problem with a quantum computer, which is specialized in its execution, will not one day be dethroned, in terms of the computing speed it allows, by a new classical algorithm. It’s happened before. 

Who are the web developers?

As a specialist in IT development, the developer is responsible for writing all or part of the IT programs necessary for the smooth running of the website for which he is responsible.

The lines of code he will write translate into computer language the functionalities requested from the site to meet the expectations of the client and the Internet user. Who are they?

The types of contracts offered to them

As the job offer far exceeds demand, it is logical to note that the vast majority of developers (82% more precisely) work on permanent contracts and a full-time basis. The low proportion (7%) of positions on internships or professionalization contracts is also due to this shortage of talent: companies are primarily seeking to attract them but also to retain them, thus favoring the permanent agreement.

The developer: a mostly male profile

Although IT is becoming more and more female, the fact remains that the job of Web developer remains mainly male: of the 270,000 developers, only 12% are women! At a time of digital transformation, and at the very moment when a real shortage of talent is being felt, the lack of appetite of female profiles for these professions is therefore still as evident as ever. It is also important to note that 6 out of 10 developers (58% to be precise) haven’t worked work for more than 10 years.

The level of training required by recruiters

But what are employers’ expectations in terms of training for these code experts? We can see that more than half (56%) of recruiters are looking for developer profiles with a minimum of 4 years of higher education. We should note that the “Master Degree” profiles are increasingly in demand by companies. However, we can highlight the large proportion of self-taught coders (20%), proof that it is still possible, with a great deal of will and personal investment, particularly in the learning of the various programming languages, to carry out such an exciting and rewarding profession.

The most popular languages

Whether they are self-taught or the result of specific training, developers must have a perfect knowledge of the different languages used by companies. But what are they? In the list of languages most sought after by recruiters in 2018, Java is in the first place, with 27% of the offers studied citing it as a prerequisite. It is used in the Android environment and not the easiest to understand and control. However, many applications and video games use it. In the second place, cited in 21% of recruiters’ offers, is JavaScript, which is mainly used on the front end. These two languages are also among the developers’ top five favorites.

In these two rankings, there are other languages, popular among both recruiters and developers, such as Python (also known as one of the easiest to learn), C++ (widely used in the video game industry) and C# (mainly used in development on the Microsoft.NET platform). On the other hand, if SQL (primarily used in database exploitation) is in third place in terms of citation by recruiters in their offers, it is absent from TOP 5 of the programming languages preferred by developers. The same is true for PHP, which is mentioned in 16% of job offers and is widely used in web development.

Alternatives to WordPress: 3 CMS solutions to create a website

WordPress is today the most popular website creation tool in the world: according to W3Tech experts, 33% of all sites on the Internet are now powered by WordPress technology. While this content management system (CMS) has established itself as a global reference, there are some excellent alternatives to WordPress.

Below, we have therefore established a selection of CMS that are accessible to all, and that will allow everyone to create a site without any computer knowledge.

Drupal, an alternative for developers

Drupal is a CMS that was created “by developers for developers” and is therefore slightly more complicated to handle. Drupal is a content management solution that is intended for an audience with technical skills, and that’s why it may be less popular.

This disadvantage can also be an advantage: indeed, thanks to Drupal’s great flexibility, it is possible to obtain much more advanced results thanks to more advanced features. It will depend mainly on the technical skills of its user: if he is up to the task, he will obtain much more convincing results than on any other CMS.

Wix, a credible alternative to WordPress

If WordPress leaves very little flexibility to its users in modifying the basic model (without computer knowledge), Wix is a much more flexible – and much more efficient – editor. Today, it is an undeniable advantage in Wix that everyone will undoubtedly recognize. The company listed on the stock exchange has more than 109 million users. It offers a free solution, and its paid version provides a 14-day trial period.

On WordPress, you can edit your site at several levels – which can make the modification sometimes a little tricky. Indeed, we should note that design changes are not made in a single place and that there can therefore quickly be confusion.

Finally, if the significant advantage of a WordPress is to be open source and open to all developers, it is also a bit of a disadvantage. Wix is much more closed, but the features are not redundant. If we had to compare, WordPress would be an open “Android” solution while Wix would be more like “iOS” with a closed ecosystem. Each has its advantages and disadvantages.

Weebly, a reinforced CMS with Square?

Weebly offers a site template system that you can use to customize and create your site. Weebly keeps some advantages/disadvantages by leaving the possibility of being able to touch the technique (as with an HTML text editor, or the possibility of exporting its database to another hosting).

On the other hand, it may be regrettable that the site models are less aesthetically pleasing.

buy bitcoin in 2019

How to buy Bitcoin in 2019?

Would you like to learn how to buy Bitcoin? The most popular cryptocurrency accepted from all over the world has a growing number of applications allowing you to acquire it. We will, therefore, explain how to buy BTC and store it.

First step: find a good wallet dedicated to Bitcoin

Digital wallets exist to store Bitcoin until you want to spend it, exchange it for other cryptocurrencies…

Once you have chosen a wallet that includes all the features you value, upload it to the appropriate platform. For beginners, we recommend that you start with a simple wallet that will allow you to transfer Bitcoins.

These wallets can be downloaded for free, but some transaction fees may apply when you move bitcoins or crypto in general, from one account/wallet to another.

You will find below some good options listed below!

The Coinbase wallet is particularly suitable for beginners since it is linked to the Coinbase trading platform and is very easy to use… Which makes it the most popular trading platform in the United States. Once registered you have visibility on your wallet, and you can quickly and from any computer or mobile, modify, resell or exchange your resources directly from the platform.

 

Step 2: Choose the right trading platform

If you want to know how to buy bitcoin without going through a reseller, then you need to know how to use an exchange platform… Also called trading platforms.

There are many trading platforms with very different performances… Make no mistake… We will quickly write an article about blacklisted platforms.

Don’t forget to look also at the fees charged by the different exchanges when buying Bitcoin for example, and the payment methods available also.

Here is a small list of secure trading platforms:

Coinbase is undoubtedly the first suggestion we can make if you have never bought Bitcoins before. This platform is particularly suitable for beginners. Very easy to use, Coinbase also has excellent customer support. You will be able to access your wallet from both the desktop and mobile versions.

CEX is even easier for those who are already used to using trading and exchange platforms. CEX gives you immediate rates with the possibility to buy and resell easily… but their payment methods are a little limited.

If you want to take a shortcut to buy Bitcoins, you can choose LocalBitcoin or Bitquick. They will allow you to buy Bitcoin quickly without trading platforms in the middle.

However, be sure of yourself if you choose this option… Overall, it is quite easy to get screwed by buying BTC from individuals.

 

Step 3: Select your payment method.

purchase of crypto assetsThe different trading platforms accept different payment options. Exchanges accepting bank transfers or credit cards are numerous, but with a certain limit.

BTC purchases via Paypal, on the other hand, are very complicated. Coinbase offers a wide choice of payment options for achat bitcoin via paypal! Which makes it the ideal platform to buy Bitcoin when you start.

 

Step 4: Buy your Bitcoins and store them in your Wallet.

You will quickly realize that the different trading platforms tell you how much you can buy from Bitcoin (BTC) with a specific fiat amount (EUR or USD). The volatile nature of Bitcoin can cause the price to change drastically from one moment to another.

It means that even if you have a lot of money to invest, you will probably only buy a “fraction” of bitcoin. The trading platform will probably charge you for the transfer… They all do.

Important: your Bitcoin exchange, purchase or shipment may take time. Indeed, each transaction is verified by the blockchain. It often takes more than an hour for a trade to arrive on the target wallet.

 

Step Five: Be ready to use your Bitcoins

Whether you plan to sell your Bitcoin (hoping it will be profitable) or use it to buy something. Be prepared whatever happens and plan in advance what you want to do… indeed the BTC course moves so fast that you have to be ready.

privacy issues windows 10

Windows 10 uploads Activity History to Microsoft even when you reject it

Windows 10 sends your timeline or activity history to Microsoft, and does not seem to be asking for your permission ! It seems to log records of what you’re doing on your PC, and upload it to the cloud… but only if you’ve enabled this option. However, it seems that data collection takes place even when this option is disabled. This data is present online in the privacy control panel, demonstrating that collection takes place without users’ consent.

It all began with a thread on Reddit, by the user u/a_potato_is_missing where a user explains: “I completely deactivated the activity history and yet some applications are still listed in the privacy control panel of the Microsoft site. How can I stop this? “. The Activity History or Timeline logs all your interactions with computer applications and documents in the same way as your web browser does. Usually, it is possible to deactivate the Timeline under Settings > Privacy > Activity History.

Windows 10 collects your Timeline or Activity History

This section contains two options: “Allow Windows to collect my activities from this computer” to enable or disable the timeline and “Allow Windows to synchronize my activities from this computer in the cloud” to put your timeline in the cloud and synchronize it with all your devices. The problem is that even when the second option is off, Windows 10 sends the data to Microsoft servers. We were able to check this in our virtual machine where the option was never activated.

To make matters worse, clicking the “Delete” button in Delete activity history does not change anything: you can always consult your Timeline by consulting the page mentioned above. According to HowToGeek to disable this collection, you should go to the configuration pages of the diagnostic data collection in the configuration of your PC and choose Basic instead of Complete. The complete data collection, enabled by default, means that the information “about the websites you are looking for and how the applications and features are used” is sent to the Microsoft servers.

In other words, this extremely confused mess for the end user is a dangerous type, while pushing a large number of users to transmit this data to Microsoft without their knowledge. We hope that things will change and this will change quickly in a future update of the operating system.

Here is how you can deactivate this annoying feature:

 

Developers divided after Microsoft’s acquisition of GitHub

The image of an editor that is hostile to the open source community still sticks to Microsoft’s image for some developers.

These people have a very negative view of the repurchase of the GitHub code repository and are already preparing to switch to GitLab or BitBucket. Others take into account the radical shift towards open source made by Satya Nadella, CEO of Microsoft.

Some even predict the death of the code-share site. As expected, epidermal reactions immediately followed the announcement of the takeover, although rumors that had been circulating for a week reduced the surprise effect.

Several developers have stated that they will immediately abandon the Git-based open source repository (version management software designed by Linux creator Linus Torvalds). The two main competitors, GitLab and BitBucket, are ready to open their arms.

Will GitHub evolve like Skype or Mono?

Some of the developers who are worried about the acquisition talk about how Microsoft has made Skype evolve, which they say is poor. The open source software purchased in 2011 has gone from being a peer-to-peer communication tool to a cloud solution.

This is an analogy that others refute by considering that it is more logical in this case to refer to the acquisition of Xamarin whose team created the Mono open source development framework. According to them, the latter did not suffer the consequences of the purchase by Microsoft, but quite the opposite, according to some. Mono allows C# developers to write multiplatform code for Windows, MacOS, Linux, Android or iOS. Whether or not it is a sign of their desire to inspire confidence in developers, it is Nat Friedman, CEO of Xamarin and familiar with the world of open source, to whom Microsoft has entrusted the management of GitHub.

Many private repositories in GitHub

From Apple to Microsoft, Amazon, Google, Facebook or IBM, everyone uses GitHub to store code and collaborate privately in their software. But among them, the main contributor to the site hosting code is Microsoft, so keep in mind those who find it logical to see the editor of Redmond take the initiative. Since GitHub seemed destined for acquisition anyway (absence of CEOs, financial problems, and other problems), others were also interested.

In a tweet, a developer participating in the Windows Insider MVP program imagines with humor what another acquirer might have done: with Apple, projects limited to XCode, with Google, ads everywhere, with Facebook, sharing data with all projects, etc.

Microsoft has embarked on some of its most important GitHub projects under open source license, including PowerShell, the .NET framework and the Edge JavaScript engine, the website thehackernews.com recalls.

Among the issues raised by the acquisition, a professor at the University of Ghent points out that many companies pay to work collaboratively on GitHub in private repositories. He considers it was potentially damaging that GitHub has sold its platform to a potential competitor of these companies. For him, this is an abuse of trust and is not considered a healthy situation, even if Microsoft is a good steward of Github’s legacy. Others point out to him that Microsoft will not venture to break this trust because that would wipe out the service. In comparison, Netflix is hosted by AWS, which in turn has a service that competes with Prime Video.

domaining and hosting explained

Design your website with PHP and MySQL and Launch it!

Your site is all beautiful, all clean, and ready to go live… but as it is on your hard drive, nobody else will be able to enjoy it!

So you’d like to upload it on the Web, but… you don’t know how.
We will discover in this article everything you need to know to send your site on the Web:

  • How to reserve a domain name?
  • What is a hosting provider and how does it work?

The domain name

Do you know what a domain name is?

get yourself a domain name

It is an address on the Web: php-qb.net is, for example, a domain name.

In this case, “php-qb” is the domain name itself. It is a name that we can generally choose freely, as long as no one has reserved it before us. It can contain letters and numbers.

The”.com” is the extension also called” TLD,” for a top-level domain. There is roughly one extension per country (.us for the United States,.ca for Canada, etc.).

However, there are also extensions used internationally such as.com,.net,.org. They were initially reserved for commercial sites, organizations,… but for a long time, everyone can reserve them. .com is probably the most used extension on the Web.

Reserve a domain name

I want a domain name for my site too! How do I do that?

Then I have good news and bad news. As usual, we’ll start with the bad one:

  • – the down side: it’s not free…
  • + The up side: … it’s not expensive at all.

Indeed, a domain name costs between 7 and 20 dollars per year.

The price may vary depending on the extension. Thus, the.info extension is generally offered at a lower price and can prove to be an exciting alternative. However, if you want a more “common” address, you should aim for a.co or.us extension.

To reserve a domain name, two options :

Go through a specialized registrar. It is a body that acts as an intermediary between ICANN (the organization that manages all domain names at international level) and you. Namecheap, GoDaddy are famous American registrars.

Even better: you can order the domain name at the same time as the hosting (this is what I recommend). This way, you kill two birds with one stone, since you will need the hosting and the domain name anyway.

In this chapter, we will see how to order a domain name at the same time as hosting; it is by far the simplest and least expensive solution for you.

The web host

fast hosting is really importantNow let’s take an interest in the host.

What is a host and why would I need it?

On the Internet, all websites are stored on individual computers called servers. Called avis hebergeur, these are usually very powerful computers, which stay on all the time. They contain the pages of websites and deliver them to Internet users who request them, at any time of day or night.

A server does not have a screen because, most of the time, it runs alone without there being any need to do anything on it. As you can see, servers are very flat: it is a unique server format (called “1U”). This allows them to be stacked in bays, i.e., a kind of air-conditioned server cabinet.

The role of the a web hosting company

The host is a company that manages server racks. It ensures that the servers are up and running 24 hours a day, 7 days a week. Indeed, if one of them breaks down, all the sites on the machine become inaccessible (and that makes customers dissatisfied).

These bays are located in particular places called data centers. Data centers are thus in a way “server warehouses,” and their access is very protected.

Find a hosting provider.

Web hosts, unlike registrars, are offering their services everywhere on the web. There are all types, at all prices. There is a vocabulary to know to find you in their offers:

Shared hosting: if you opt for a shared hosting offer, your site will be placed on a server managing several sites at once (maybe a hundred, maybe more). This is the cheapest offer, and it is the one I recommend you aim for if you start your website.

Virtual dedicated hosting: this time, the server only manages very few sites (usually less than a dozen). This offer is generally adapted to sites which on the one hand can no longer fit on shared hosting because they have too much traffic (too many visitors), but which on the other hand cannot afford a dedicated hosting.

Dedicated hosting (also called “dedicated server”): it is the ultimate solution. The server only manages your site and no other. Attention, the costs are quite expensive and it is better to have knowledge of Linux to administer the server remotely.

Cloud Hosting: More and more trendy these days, it consists in sending your site on virtual servers. In fact, it is the equivalent of a virtual dedicated hosting, but with a whole bunch of services around it to make it easier for us to manage the network, databases, etc.. This is the trend for more and more medium and large websites.

Coding kids

Different Apps For Teaching Children Coding

It is difficult to imagine a career in today’s world that doesn’t require some coding. Every element in our digital world has some form of coding to make it operate. Coding, also known as programming, is all around us – this is why children need to be taught coding. Programming is no longer the realm of skinny 20-year-olds, but it is now possible for children to learn to code. This article will provide information on the different apps for teaching children coding.

App #1: Gamestar Mechanic

Gamestar Mechanic is a type of app that is available online and costs $2 per student. It is designed for children aged 7 to 14 and helps students build their video games. Students can enjoy completing various self-paced quests while continuing to build game levels. This app integrates problem-solving tasks with critical thinking. Embedded within Edmodo makes login simpler for students.

App #2: Scratch

Scratch is another type of app that is available online, but it is free for each student. Created by MIT staff and students in 2003, Scratch is one of the first programming apps created specifically for students aged 8 to 16. This app was originally used as a multi-platform download, but it developed into a web-based option to make the item more accessible.

Scratch utilizes a visual programming language credited with bricks that need to be dragged into a workspace, thus animating sprites. The different bricks create variables, trigger loops, play sounds, initiate interactivity, and do much more. Teaching communities, guides, and resources are part of the app and can help instruct the student in how to utilize the bricks.

App #3: Tynker

Tynker is an educational app that is similar to Scratch. It is available online and is free to use, but comes with a Premium upgrade alternative. The layout is almost identical to Scratch; however, where Scratch was developed to program, Tynker teaches children programming. This particular app presents with beginner lesson plans, an online showcase of student-developed programs, and management resources for the students. The lessons are self-paced and simple to follow so that the children can move through the lessons without any assistance.

App #4: Move The Turtle

Move The Turtle is a coding app available on the iOS platform and costs $2.99 to purchase. This is one of the more popular apps among Apple users because it utilizes a character to teach the children computer coding. As the student progresses through the levels, the game increases in difficulty. This means that they are presented with a new command to direct the turtle towards an element, such as a sound, star or line. Free play “compose” modes allow the pupils to move the turtle wherever they want, but this does not affect their position in the “game.”

App #5: Hopscotch

Another educational coding app available on an Apple device (the iPad), but that costs nothing is Hopscotch. This app appears similar to Scratch using controls to drag blocks into workspaces; however, it is run on an iPad and Scratch is web-based. Hopscotch is one of the basic apps to learn programming, problem-solving, and logical thinking. If the pupil wishes to learn more extensive coding, he or she will need to implement another app option.

coding free training

How To Find Sites That Will Teach You Coding For Free

Knowing how to code is something that has outstanding earning potential. There are many high-paying jobs in the IT industry, so there’s no wonder this has become such a desirable skill. If you also want to get a programming job, you need to choose a specific language and learn it very well. Unfortunately, such training is expensive, so you may want to start by finding some sites that will teach you coding for free. This article shows you how.

The first and foremost thing you need to do is to decide which language you’d like to learn. You can browse jobs websites, to assess the value of various coding skills and abilities. As a general rule, back-end developers earn more than front-end coding specialists. Nonetheless, if you want to have an easier time at learning how to code, you may want to go for PHP, JavaScript or Ruby on Rails. There are many free websites you can use to learn the basics of these languages.

top 4 websites to trainThe easiest way to find these sites is to perform a search in your favorite search engine, be it Yahoo, Bing, Google or Duck Duck Go. Don’t forget to include the name of the programming language you want to learn, as this can make a huge difference when it comes to the quality and the relevance of the results.

There’s no doubt you’re going to find at least a couple of websites to teach you coding for free. However, you’ll need to give them a try to find the one that suits you best. You may have to create a free user account, but this shouldn’t be a big problem. Just do it and follow a few lessons to see whether they deliver the information in a style that suits you.

The other method to learn to code for free is to join websites that teach you the skills you need, whether they are free or paid. Most of them allow you to cancel your membership within the first two weeks or one month, so you won’t have to spend a dime on your education, provided that you can learn the basics within this time frame. You may also want to keep an eye on the various promotions of teaching websites like Udemy. Sometimes they offer their courses for free for a limited time, to attract new users. All you have to do is to subscribe to their newsletters and watch your inbox. Next, take advantage of your free trial to learn whatever you want.

Always keep in mind that learning how to code isn’t too complicated, yet improving your skills takes much practice. You have to put your knowledge to good use by developing some cool projects. Like this, you’ll have the opportunity to deepen your knowledge, as you’ll need to find solutions to various problems and challenges that are inevitably going to occur. The more projects you tackle, the better you’re going to become. From this point on, you can safely start applying for coding jobs.

learn php quickly

Where To Find A Good Introduction To PHP Coding

PHP is one of the most sought-after programming languages. Many prominent websites use it, WordPress is based on it, so there no wonder PHP knowledgeable experts are in high demand. Such coding skills can land you a very nice job. What to do, though, when you have the desire to code but you lack the skills?

Today is a good day to start!

php code on websiteThe answer is simple; start learning PHP today, and you’ll benefit from it tomorrow. If you are a beginner, you should seek for an excellent introduction to PHP coding to start with. The good news is that you’ll find useful resources online. Many of them are free of change, so you won’t have to enroll in a paid course to learn this language. Just use your favorite search engine to see what you can find. Search for resources for beginners. It’s always better to start by learning the basics before moving on to more complicated things. Like this, you’ll have a solid foundation you’ll be able to build on. If you start by trying to understand complex functions, you may have a hard time at improving your coding abilities.

Once you find some websites where you can learn the basic syntax and the main PHP functions, you’ll need a project to implement them in. Without this, you’ll never learn proper coding, as you’ll forget everything very quickly. You need practice to fix the acquired skills in your brain and to learn how to overcome various challenges that may arise. If you don’t have a specific project to work on, you should seek for websites that enable you to write code and see the results on the spot. These websites provide the users two boxes, one for typing in the code, and the second one for viewing the result. This is an excellent method to debug your code without having to ask other coders for help.

Help is available everywhere

If you need help as you progress in your learning, you should search for blogs of professional coders and subscribe to their feeds or take a look inside their archives. You’ll find valuable bits of information that may help you solve various problems and debug your code. PHP is relatively easy to learn and understand in comparison with other programming languages.

If learning online isn’t your cup of tea, you may want to search for some PHP coding books for beginners. These books have a significant advantage that they include exercises and tutorials. By doing these exercises, you can understand even complex functions of the PHP language. Nonetheless, you have to be genuinely motivated to stick to these exercises until you understand all the code in detail.

Last but not least, don’t forget that you have many affordable options for online courses. You can find such a resource on Udemy and many other similar websites. These video tutorials are usually excellent, as experts create them with many years of coding and thousands of projects in their work portfolios. Join them and learn PGP coding from the best.

passwords and encryption

Secure passwords with hashes and salts

As we all know, the purpose of a password is above all to remain known to a person or a group of persons. Its disclosure then leads to the complete loss of its effectiveness and safety. When the password becomes known to a third party, the latter may, for example, appropriate rights over an application and compromise its normal operation. A password is extremely sensitive and coveted by hackers, regardless of the application that uses it.

What is a password?

Metaphorically, a password can be perceived as a critical opening door(s) to the one who holds it. Thus, this user appropriates additional rights that other people do not have. It is then up to him not to disclose it so that an evil third party does not misappropriate the privileges conferred on him.

When one / several passwords must be saved in an information system (database, configuration files…), it becomes more complicated. Indeed, security is only for one person but now depends on the security of the information system itself (physical access, identifiers to connect to it) as well as on the way these passwords are stored in the IS.

Password security in an information system

It is evident that increased password protection in the information system must be put in place. The storage of passwords in clear text in the information system then becomes impossible. Why? Why? Let us take the typical case of a database in which are stored the identifiers of the users of an extranet of a company. This implies that there is a security policy with several levels of rights.

A technician will not have the same privileges on the application as his superior. The latter will also not have the same rights as the Director of Human Resources or the CEO. In this type of application, the password is the guarantor of data security. We must, therefore, protect it assiduously. Encryption then becomes indispensable.

Why encrypt sensitive data?

The answer is simple. This is to keep confidential the password that has been assigned to the user outside of the application. There is also a part of deontology insofar as even the person in charge of the application should not have to know the personal identifiers of the users. It’s none of his business. Let us return to our example.

Extranet also means access to the application from the Internet. The data must then be encrypted via a secure HTTPS connection and the application protected against possible hacker access. Let us suppose that this extranet was poorly written and that it contains a SQL injection flaw. A hacker could then retrieve the passwords stored in the database and enter the application without any problem with the CEO’s credentials. If passwords are encrypted, it will be much harder for the hacker to retrieve their plaintext match. In this example, the attack comes from the outside but what if the weakness of the system is inside?

Indeed, let us suppose that it is necessary to maintain the database by connecting directly to it. The company that edited the application sends its database administrator into intervention. This technician intervenes on the spot but is not at all part of the company which uses the application. She’s going to manipulate the database. That is, she will most likely be able to see everything inside… including the login credentials. If the passwords had been recorded in plain text, he could have appropriated the accesses of any user on the extranet application… Nevertheless, nothing prevents him from creating a new user with all the rights directly in the database. We will, therefore, see later that traditional encryption is not enough to strengthen the security of a password.

Encryption methods

There are many of them. This can range from encryption algorithms (which can be decrypted with the appropriate algorithm and key) to hash algorithms. It is the latter that we tend to use today. Indeed, a hash algorithm can encrypt a string without the possibility of reverse operation. The hash result usually produces a single, fixed-length string. This is the case, for example, with MD5 and SHA1 algorithms. Thus, during an authentication phase, two passwords are no longer compared in plain text but two hashes of the password.

rsz_php_5_to_7

Migration from PHP 4 to PHP 5

PHP 4 support is a thing of the past. It is therefore becoming urgent to migrate to PHP 5 because in 2008 no new version of PHP 4 will be released (support will still be provided on security vulnerabilities until 08/08/2008).

The compatibility between PHP 5 and PHP 4 has been a major concern during the development of PHP 5, and a large majority of applications should be able to run on PHP 5 without problems, or require only minor modifications. There are however some differences and we will try to summarize them here to allow you a simple migration.

Why migrate?

New features
Better performance
Better security
Better stability
PHP 5 is strongly supported

What has changed with PHP 5?

the redesign of the PHP core which allows a complete support of object-oriented programming
XML support redesign
SQLite embedded database integration
integration of new extensions (JSON, Filter, ZIP, …)
the emergence of a common basis for managing database calls: PHP Data Object (PDO)
the use of object reflection ( introspection)
exceptions have appeared in PHP5
an E_STRICT error level has been added
appearance of the SPL (Standard PHP Library), a collection of useful internal classes

Although most existing PHP 4 scripts should work, it is worth noting some major differences that can lead to errors or different behaviors:

Object management (referencing)
the redesign of DOM support with the abandonment of the DomXML extension
MySQL extension is no longer included by default
new error mode E_STRICT
The new object model

The main novelty of PHP 5 is certainly the new object model. Object processing has been completely rewritten to achieve better performance and more functionality. To date the object model of PHP 5 is close to that of Java, it thus results from it a certain number of innovations: magic methods, visibility, (was already present in PHP4, the novelty it is the destroyer or more generally the magic methods), encapsulation, cloning, interfaces, abstract classes…

Objects are passed by reference

In PHP 4 the entire object was copied when it was assigned or passed as a parameter to a function. In PHP 5 objects are referenced by a pointer and not their value (one can think of a pointer as an object identifier).

Pass an object by reference

Objects are no longer passed by value but by reference. The result is that once transmitted to a function, a PHP 5 object will see its values evolve while in PHP 4 it is a copy that will be modified within the function, the original object will remain unchanged.

In PHP 4 to make an object pass as reference we could do it by prefixing the variable with the sign”&”. Test our Xxxx example by removing the”&” in the declaration of the “fctActionObject()” function, you will see that in one case the”$b” object is modified and in the other it is not (and because the modification was made on a temporary copy).