today's howtos

posted by Roy Schestowitz on Aug 18, 2025

• Dan Langille ☛ Can’t get to some Disney links

  I searched my email for rpz, because I’m sure I now this. I found an email thread with Morgan Davis. I implemented dns-blackhole back in April 2025. That led me to crontabs.

• James G ☛ Developing an alt text button for images on my website

  Inspired by this feature, I decided to see if I could make a HTML-and-CSS-only alt text button for images on my website. After some development, I have a solution that is 90% of the way there. I could use help to get the rest of the way. Below, I will write what I have, how it works, and where the limitations are in my approach.

• University of Toronto ☛ Getting Linux nflog and tcpdump packet filters to sort of work together

  So, suppose that you have a brand new nflog version of OpenBSD's pflog, so you can use tcpdump to watch dropped packets (or in general, logged packets). And further suppose that you specifically want to see DNS requests to your port 53. So of course you do: [...]

• What is Reverse Proxy and Why You Need One for Security

  How reverse proxy simplifies service access, enhances security, and provides centralised management. Learn implementation strategies for home labs and enterprise environments.

• Linux Handbook ☛ Learn Docker: Complete Beginner's Course

  Covers all the essentials of the Docker. Perfect for anyone who wants to get started with Docker containerization. The course goes in the hands-on mode by showing examples of what you'll be doing instead of dwelling in theory.

• Linux Handbook ☛ Introduction to Flatpak

  The universal packaging system from Fedora is popular among developers and desktop GNU/Linux users.

• Linux Handbook ☛ File Management Commands in Linux

  Once you have a little bit of idea about the terminal, GNU/Linux command structure, path and directory hierarchy system, you should know about handling files in Linux.

• Linux Handbook ☛ SSH Fundamentals

  Learn how to communicate between a remote GNU/Linux server and your local operating systems (Windows, GNU/Linux or macOS) using SSH.

• Valhalla's Things: rrdtool and Trixie

  TL;DL: if you’re using rrdtool on a 32 bit architecture like armhf make an XML dump of your RRD files just before upgrading to Debian Trixie.

  I am an old person at heart, so the sensor data from my home monitoring system¹ doesn’t go to one of those newfangled javascript-heavy data visualization platforms, but into good old RRD files, using rrdtool to generate various graphs.

• DebugPoint ☛ How to Upgrade to Debian 13 from Debian 12

  Here’s how you can upgrade to Debian 13 “Trixie” from Debian 12 “Bookworm”. Debian 13 “Trixie” is released on August 9, 2025 with many new features and updates. If you are running Debian 12 “bookworm”, you can plan to upgrade your desktop or server now.

• How to Install Kodi on FunOS

  Kodi is one of the most popular open-source media center applications available today. With Kodi, you can transform your PC or laptop into a powerful home theater system capable of playing videos, music, and photos from both local storage and online sources.

• idroot

  • ID Root ☛ How To Enable BBR on Debian 13

    Network performance bottlenecks plague modern computing environments, causing frustrating slowdowns and inefficient data transmission. Traditional TCP congestion control algorithms often struggle with contemporary network conditions, leading to suboptimal throughput and increased latency. Bottleneck Bandwidth and RTT (BBR) emerges as Google’s revolutionary solution to these persistent networking challenges.

  • ID Root ☛ How To Install GIMP on Debian 13

    GNU Image Manipulation Program (GIMP) stands as one of the most powerful and versatile open-source image editing software applications available for GNU/Linux systems. This comprehensive guide will walk you through multiple methods to install GIMP on Debian 13, ensuring you have access to professional-grade image editing capabilities on your system.

  • ID Root ☛ How To Install Shotcut on AlmaLinux 10

    Shotcut stands as one of the most powerful open-source video editing applications available for GNU/Linux systems today. This comprehensive guide will walk you through multiple methods to install Shotcut on AlmaLinux 10, ensuring you can start editing videos efficiently on your enterprise-grade GNU/Linux distribution.

  • ID Root ☛ How To Install Git on Debian 13

    Git stands as the world’s most widely adopted distributed version control system, essential for developers, system administrators, and anyone collaborating on code projects. This powerful tool enables efficient tracking of changes, seamless collaboration across distributed teams, and robust project management capabilities that have revolutionized modern software development workflows.

  • ID Root ☛ How To Install Kanboard on Fedora 42

    Project management has evolved significantly in the digital age, and Kanban methodology stands at the forefront of efficient task organization. Kanboard, a powerful open-source project management tool, brings the visual simplicity of Kanban boards to teams seeking streamlined workflow management.

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

    Emacs stands as one of the most powerful and extensible text editors available in the GNU/Linux ecosystem. For Rocky GNU/Linux 10 users seeking a robust development environment, installing Emacs opens doors to unparalleled customization and productivity.