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Ubuntu Tips & Linux Tutorials
  • Calibre ebook manager lets you generate AI book covers in a click
    Linux Tips

    Calibre ebook manager lets you generate AI book covers in a click

    Byadmin August 29, 2026

    A new version of open-source ebook manager Calibre is out – and it lets you create custom book covers using generative AI. Calibre 9.14, released August 28, adds an “AI Generate” button to the book editor so you can create new ebook covers and apply them to existing titles. It includes preset “styles such as…

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  • GE-Proton 11-3 brings better OptiScaler integration, AMD FSR4 improvements and lots of game fixes
    Linux Basics

    GE-Proton 11-6 released with updates for Wayland, PS5 Controllers and more upgrades

    Byadmin August 29, 2026

    The community build of Valve’s compatibility layer GE-Proton 11-6 is out now, bringing major new features and changes to running Windows games SteamOS / Linux. See also – check out our guide on all the different versions of Proton and also how to install GE-Proton. With this release there’s major improvements to Wine Wayland, including…

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  • How to Use AppArmor on Linux: A Beginner's Security Guide
    Linux Tips

    How to Use AppArmor on Linux: A Beginner’s Security Guide

    Byadmin August 29, 2026

    55 Sarah’s Security Brief: I always check AppArmor profiles before trusting any service on a production server. This guide walks you through the exact commands and profile structures I use to verify, create, and manage security policies. For deeper dives, see our guides on Linux file permissions, user groups and permissions, and SSH hardening. AppArmor…

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  • USN-8493-1: Linux kernel vulnerabilities | Ubuntu security notices
    Linux Basics

    USN-8688-1: PAM vulnerability | Ubuntu security notices

    Byadmin August 28, 2026

    24.04 LTS noble libpam-doc –  1.5.3-5ubuntu5.7 libpam-modules –  1.5.3-5ubuntu5.7 libpam-modules-bin –  1.5.3-5ubuntu5.7 libpam-runtime –  1.5.3-5ubuntu5.7 libpam0g –  1.5.3-5ubuntu5.7 libpam0g-dev –  1.5.3-5ubuntu5.7 22.04 LTS jammy libpam-cracklib –  1.4.0-11ubuntu2.8 libpam-doc –  1.4.0-11ubuntu2.8 libpam-modules –  1.4.0-11ubuntu2.8 libpam-modules-bin –  1.4.0-11ubuntu2.8 libpam-runtime –  1.4.0-11ubuntu2.8 libpam0g –  1.4.0-11ubuntu2.8 libpam0g-dev –  1.4.0-11ubuntu2.8 20.04 LTS focal libpam-cracklib –  1.3.1-5ubuntu4.7+esm1   Ubuntu Pro Fix available with Ubuntu Pro. libpam-doc –  1.3.1-5ubuntu4.7+esm1   Ubuntu Pro Fix available with Ubuntu Pro….

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  • DNS Record Types Explained: A, AAAA, CNAME, MX, TXT, and More
    Linux Tips

    DNS Record Types Explained: A, AAAA, CNAME, MX, TXT, and More

    Byadmin August 28, 2026

    A website can load normally while mail delivery, domain verification, or certificate issuance fails. Each service asks DNS a different question, and the answer comes from a specific record type. A and AAAA records provide server addresses, MX records route email, TXT records publish verification and policy data, and several other types handle aliases, delegation,…

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  • Why Your Backups Are Too Big: A Practical Guide to Content-Defined Chunking
    Linux Basics

    Why Your Backups Are Too Big: A Practical Guide to Content-Defined Chunking

    Byadmin August 28, 2026

    By Gilles Chehade You change one line in a large file. Your “incremental” backup re-uploads the whole thing anyway. Nine times out of ten, it’s not the network, and it’s not your storage backend. It’s the algorithm deciding where to cut your data into pieces. Every deduplication system works the same way: split data into…

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  • 12 Best Free Platforms to Learn DevOps with Hands-On
    Linux Tips

    12 Best Free Platforms to Learn DevOps with Hands-On

    Byadmin August 28, 2026

    Watching DevOps tutorials is easy. Actually knowing what to do when a server is broken at in production is not. The gap between the two is hands-on practice and if you have been searching for structured, interactive DevOps labs, you have probably run into the same problem: most good platforms cost money, and the free…

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  • OpenAI AI Coding Agent for Linux Terminal
    Linux Tips

    OpenAI AI Coding Agent for Linux Terminal

    Byadmin August 27, 2026

    Codex CLI is OpenAI’s coding agent that runs in your terminal, reads your files, and executes shell commands on your machine. In this guide, you’ll learn how to install it using curl or npm, sign in from a headless server, and configure sandbox modes before letting it work with anything important. It’s easy to install…

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  • DistroWatch.com: NawaOS
    Linux Basics

    DistroWatch.com: NawaOS

    Byadmin August 27, 2026

    DistroWatch.com: NawaOS Last Update: 2026-08-27 09:04 UTC nawaos-2.0-cinnamon (more screenshots in our gallery)   NawaOS is a Debian-based Linux distribution designed for gamers, with Steam, Lutris, Wine and RetroArch pre-installed and configured. It also comes with support for Xbox, PlayStation and other controllers. The distribution features a customised Cinnamon desktop, the Calamares system installer, and OBS…

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  • You Should Keep an Eye Out on Chromium's Flatpak Experiment
    Linux Tips

    You Should Keep an Eye Out on Chromium’s Flatpak Experiment

    Byadmin August 27, 2026

    Chromium’s source tree has gained experimental support for packaging the browser as a Flatpak, and the change has already been merged yesterday. It’s a small addition, basically a commit sitting behind a disabled build flag, but it’s the kind of change worth keeping an eye on if you’ve been wanting an official way to run…

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