linuxSecurity
How to Set Up UFW Firewall on Ubuntu Server in 10 Minutes
Set up UFW on Ubuntu Server in ten minutes: allow SSH first, deny everything else, and verify each rule before the firewall locks you out of your own server.
30 Oct 20266 min
Security
29 articleslinux
linuxSecurity
How to Encrypt a USB Drive with LUKS: A Step-by-Step Guide
Encrypt a USB drive with LUKS on Linux, step by step: wipe, format, unlock, and back up the header so your files stay private on any machine.
29 Oct 20268 min
linuxSecurity
OpenSSL 4.1.0 Is Final: DTLS 1.3 Arrives, and the Upgrade Is Boring (That's the Point)
OpenSSL 4.1.0 shipped on October 23 with native DTLS 1.3, GREASE, and faster post-quantum math — and it's ABI-compatible with the 4.0 line, so here's how to roll it out without breaking anything.
24 Oct 20264 min
kernelSecurity
Six Unpatched Kernel Flaws Just Got Emailed to the World — and the Clock Is Now Public
Trend Micro's Zero Day Initiative accidentally posted six unpatched Linux kernel vulnerability reports to the public LKML. Two of them are CVSS 9.0 remote-code-execution flaws in the kernel's SMB server with no fix in mainline yet. Here's the operator's checklist while the clock runs.
23 Oct 20264 min
securitySecurity
Two 9.5s in One Patch Window: The Next.js Emergency Playbook
Vercel's October 14 out-of-band update closes two unauthenticated RCEs rated CVSS 9.5 — one hiding in `use cache`, one in your image pipeline — plus a Server Actions DoS. Here is the operator's order of operations.
22 Oct 20264 min
securitySecurity
Nobody Upgrades Their DNS Server — BIND's Four New Flaws Are About to Change That
ISC disclosed four BIND 9 vulnerabilities on October 21 — one may allow remote code execution, and none of them has a workaround. Here is the operator's triage-and-upgrade drill.
22 Oct 20264 min
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