Ubuntu 24.04 to 26.04 LTS Upgrade Preflight: Six Checks Before You Run do-release-upgrade Ubuntu 26.04 LTS is out, and Ubuntu 24.04 systems are the natural upgrade candidates. The upgrade tool will do the... Sep 26, 2026 5 min read Linux
CVE-2026-96512: The Sudo TZ Bypass That Defeats NOTBEFORE/NOTAFTER Time Restrictions, and the One-Line Fix If your sudoers file uses time-based access windows, NOTBEFORE and NOTAFTER rules that grant a user or group elevated access... Sep 25, 2026 4 min read Linux
Who Actually Runs the Internet: The Standards Bodies Behind Linux and Networking Every command you type on a Linux box, and every website that server talks to, rests on a stack of... Sep 7, 2026 4 min read Linux
Essential Linux Commands Every Windows Sysadmin Should Know A Windows-to-Linux cheat sheet: Event Viewer, Services.msc, Task Manager, Group Policy, Local Users and Groups, the Registry, Windows Firewall, and Scheduled Tasks, mapped to their real Linux equivalents. Sep 6, 2026 4 min read Linux
How to Troubleshoot a Failed systemd Service on Linux A step-by-step troubleshooting order for a Linux service that won’t start: systemctl status, journalctl, config validation, port conflicts, permissions, SELinux/AppArmor, and dependencies. Sep 6, 2026 4 min read Linux
