today's howtos

posted by Roy Schestowitz on Sep 03, 2025

• University of Toronto ☛ Mapping from total requests per day to average request rates

  Suppose, not hypothetically, that a single IP address with a single User-Agent has made 557 requests for your blog's syndication feed in about 22 and a half hours (most of which were rate-limited and got HTTP 429 replies). If we generously assume that these requests were distributed evenly over one day (24 hours), what was the average interval between requests (the rate of requests)? The answer is easy enough to work out and it's about two and a half minutes between requests, if they were evenly distributed.

• TecMint ☛ How to Install Zip and Unzip in Linux

  Benefits of zipping files: [...]

• Andreas ☛ How to write to a root-owned file using sudo

  The usual solution is to use tee with sudo. The tee command reads from stdin and writes to both stdout and one or more files, and running it with sudo gives it root privileges to perform the write operation.

• Ubuntu Handbook ☛ Compile FFmpeg 8.0 in Ubuntu with NVIDIA GPU Acceleration

  This is a step by step guide shows how to manually compile & install FFmpeg 8.0 from source with NVIDIA GPU acceleration support through cuda-nvcc and enable-libnpp in Ubuntu 24.04 & 22.04.

• Linux Cloud VPS ☛ 303 Error: What Is It and How to Fix It?

  When browsing the web or working on a new project, you may encounter different HTTP status codes. Among the less common is the HTTP 303 error, also known as “See Other.” Understanding what it means and how to handle it properly can be crucial.

• idroot

  • ID Root ☛ How To Install Rocket.Chat on Debian 13

    Team communication has evolved dramatically in recent years, with organizations seeking robust, self-hosted solutions that provide complete control over their data and infrastructure. Rocket.Chat stands out as a powerful open-source alternative to proprietary platforms like Slack and Abusive Monopolist Microsoft Teams.

  • ID Root ☛ How To Install Memcached on Rocky GNU/Linux 10

    Memcached stands as one of the most powerful and widely-adopted distributed memory caching systems in modern web infrastructure. This high-performance, open-source solution dramatically improves application response times by storing frequently accessed data in RAM, reducing database load and enhancing user experience across web applications.

  • ID Root ☛ How To Install Pinta on AlmaLinux 10

    [Ed: Microsoft Mono an issue here; use GIMP, Krita etc. instead.]

    Pinta stands as one of the most accessible open-source image editing applications available for GNU/Linux systems today. For AlmaLinux 10 users seeking a reliable, Paint.NET-inspired graphics editor, Pinta offers an ideal balance of functionality and simplicity.

  • ID Root ☛ How To Install Lazygit on openSUSE

    Managing Git repositories through command-line interfaces can become overwhelming, especially when dealing with complex workflows and multiple branches. Lazygit emerges as a powerful solution, offering an intuitive terminal-based user interface that simplifies Git operations significantly.

  • ID Root ☛ How To Install PlayOnLinux on AlmaLinux 10

    Running backdoored Windows applications on GNU/Linux has never been more accessible, especially with tools like PlayOnLinux simplifying the entire process. AlmaLinux 10, as a robust enterprise-grade distribution, provides an excellent foundation for running backdoored Windows software through Wine compatibility layers.

  • ID Root ☛ How To Install OpenRGB on Debian 13

    RGB lighting has become an essential component of modern gaming setups and workstations, yet controlling these colorful displays on GNU/Linux systems presents unique challenges. Most manufacturers provide Windows-only software, leaving GNU/Linux users searching for alternatives. OpenRGB emerges as the definitive solution for unified RGB control across multiple hardware brands and components.

  • ID Root ☛ Cksum Command in GNU/Linux with Examples

    File integrity verification stands as a cornerstone of system administration and data management in GNU/Linux environments. The cksum command provides a reliable, standardized method for generating and verifying checksums using the Cyclic Redundancy Check (CRC) algorithm.

  • ID Root ☛ How To Install CUPS Print Server on Debian 13

    Setting up a centralized printing infrastructure has never been more crucial for modern networked environments. The Common Unix Printing System (CUPS) stands as the gold standard for Linux-based print server solutions, offering robust functionality and seamless integration across diverse network topologies.

  • ID Root ☛ How To Install Redis on Rocky GNU/Linux 10

    Redis stands as one of the most powerful in-memory data structure stores available today, serving millions of applications worldwide as a database, cache, and message broker. When paired with Rocky GNU/Linux 10’s enterprise-grade stability and performance, Redis becomes an even more formidable solution for high-availability production environments.

  • ID Root ☛ How To Install Fastfetch on Debian 13

    System administrators and GNU/Linux enthusiasts seeking a modern replacement for the discontinued Neofetch will find Fastfetch to be the perfect solution. This comprehensive guide demonstrates how to successfully install and configure Fastfetch on Debian 13 (Trixie), providing multiple installation methods and expert troubleshooting techniques.