Linux
Which Process Is Using That Port? Mapping a Listening Port to a PID on Linux
A service will not start because "Address already in use". A port is open that nobody can account…
Articles
Category: Linux
Linux
48 Hours After Januscape, the Big Distros Still Haven’t Shipped a Patched Kernel
Januscape (CVE-2026-53359) is a guest-to-host VM escape that was fixed upstream on 19 June and disclosed publicly on…
Linux
CVE-2026-53359 (Januscape): KVM VM-Escape Flaw in the Linux Kernel — Fixes and Kernels With a Patch
Januscape (CVE-2026-53359) is a use-after-free in KVM's x86 shadow MMU that lets a guest escape to the host…
Linux
5 Essential Linux Commands Every Admin Should Know
Five Linux commands every administrator should master — grep, ss, journalctl, rsync and htop — with practical examples…