eMudhra CA Compromise: Audit Your Linux Trust Store Now
"This week, a certificate authority compromise put every Linux desktop on notice. Eight eMudhra CA intermediates shipped private keys so weak anyone can rebuild them — and Firefox 158.0.1 already shipped the fix. We run three read-only audit checks across Ubuntu, Fedora, Rocky, and CachyOS, then show the exact patch order. We also analyze what Linux 7.3 proves about AI in kernel development, review Steam's first 64-bit Linux client, and cover the faster I/O and gaming hardware support in the 7.3 release. Audit your trust store, test your knowledge, and keep building."
The eMudhra CA Compromise: How to Audit and Patch Linux
Liam's Brief: Eight eMudhra CA intermediates shipped private keys so weak anyone can rebuild them. This guide runs three read-only checks — probe, grep, package version — on Ubuntu, Fedora, Rocky, and CachyOS, then shows the right ca-certificates patch order, the per-distro fix table, and the container, Go, and IoT stores a package manager never sees.
🐧 Kernel & Releases
Linux 7.3 Released: Faster I/O and Gaming Hardware Support
A post-release review of Linux 7.3 for people who want facts, not predictions: what landed in the October 18 tag, the upstream numbers behind the faster-I/O headline, Steam Controller and MSI Claw kernel support.
The AI-Assisted Kernel: What Linux 7.3 Proves
We connect three AI moments from the Linux 7.3 window into one analysis: the disclosed Claw driver, Linus's tagged LLM branch, and the live debate over the Assisted-by trailer. Built from primary patches and live 7.3 kernel captures.
🎮 Steam & Desktop
Steam Client for Linux Goes 64-Bit: What Changes, What Doesn't
Valve's latest beta made the Steam client on Linux 64-bit for the first time and moved it inside a pressure-vessel container called steamrt3c. We cover what changed, how to opt in, and why 32-bit multilib support is still required.
What Is a Live USB? How Temporary Linux Systems Work
A live USB boots Linux from a flash drive and saves nothing. We cover the read-only SquashFS root, the RAM-backed copy-on-write overlay, compare Ubuntu, Fedora, and CachyOS live stacks, and bust the loads-into-RAM myth.
🔬 The Latest from the Lab
- Why Do Linux Apps Need Dependencies?
- How to Open .pub Files on Linux After Publisher Retires
- GNOME OS Preview: What It Is, What Works, Who Should Try
🧠 Test Your Knowledge
Challenge yourself with our latest Linux quizzes. Pick a topic and see how you score.
Linux Gaming Quiz: Proton, Wine & Steam Deck
Take the Quiz, Download Your Free Brag Card. Think you know Proton, Steam Deck tweaks and Linux gaming? Take the...
Linux Myths vs Facts Quiz: Test Your Knowledge
Take the Quiz, Download Your Free Brag Card. Think you can tell Linux myths from facts? Take the quiz, then...
Desktop Environment Showdown: GNOME vs KDE vs Xfce
Take the Quiz, Download Your Free Brag Card. Think you can pick the right Linux desktop for the job? Take...
♻️ 2026 standards
Our core infrastructure guides, freshly updated to 2026 standards.
Tmux Pane Splitting: Vertical & Horizontal Techniques
Updated Oct 2026 — We cover every tmux split command from horizontal and vertical to uneven ratios and named layouts...
Pop!_OS Keyboard Shortcuts to Boost your Productivity
Updated Oct 2026 — We cover the full Pop!_OS keyboard shortcut set from window management to workspace switching and tiling...
Bringing Windows to Pop!_OS: A Guide to Using Wine
Updated Oct 2026 — We walk through installing Wine on Pop!_OS, creating prefixes, and running Windows applications reliably...
How to Fix DNS Leaks With OpenVPN in Ubuntu
Updated Oct 2026 — We cover detecting DNS leaks, configuring OpenVPN for DNS privacy, and verifying with leak testing tools...
💬 The Open Discussion
Trending conversations from the FOSSLinux Community Forum this week:
Firefox 158.0.1 fixes eMudhra certificate validation issues
"Firefox 158.0.1 is out and the fix that matters is for eMudhra certificate validation..."
Linux 7.3 released: faster ext4 and better support for low-VRAM AMD GPUs
"Linux 7.3 shipped October 18 with faster ext4, improved low-VRAM AMD GPU support, and gaming hardware improvements..."
Linux Mint new system monitor does more than you would expect
"Just tried this on a Mint Cinnamon VM and the historical data is surprisingly deep..."
Ubuntu 26.10 flavours recap: what shipped alongside GNOME this cycle
"Ubuntu 26.10 flavours recap covering what Kubuntu, Xubuntu, Lubuntu, and the rest shipped this cycle..."
VLC makes its biggest security release ever
"Remote code execution in a media player is the classic attack surface — VLC's massive security release addresses it..."
Microsoft Defender is now available on Linux desktops
"Microsoft definition of protection includes telemetry and Defender arriving on Linux raises privacy questions..."
NordVPN 6.0 for Linux brings breaking changes — heads up before you update
"I read the 6.0 notes this morning and the architecture changes are significant..."
The Document Foundation finally has its own logo after 16 years
"After 16 years the Document Foundation finally has its own visual identity separate from LibreOffice..."
Linux Mint 27 codenamed Adrien due this Christmas
"A Christmas release window is smart for Mint — it lands right when people set up new machines..."
Ubuntu Myna AI dictation enters tech preview
"Ubuntu Myna the AI dictation tool has entered tech preview with local hardware inference..."
The Open Discussion
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