Process-Management on Pi Stack

Self-Hosted Linux Service Restart Detection: needrestart vs checkrestart vs debsums

Fri, 29 May 2026 00:00:00 +0000

After installing package updates on a Debian or Ubuntu server, some running services continue using old library code until they are restarted. This is one of the most common reasons why “patched” servers remain vulnerable — the security fix was installed, but the running process never loaded the updated binary. This guide compares three tools for detecting which services need restarting after package updates: needrestart, checkrestart (from debian-goodies), and debsums.

Self-Hosted Container Init Processes: tini vs dumb-init vs docker-init for Signal Handling (2026)

Fri, 22 May 2026 00:00:00 +0000

Every container runs with PID 1 as its first process. This init process has a critical responsibility that most developers overlook: signal handling and zombie process reaping. Using the wrong PID 1 process leads to containers that ignore shutdown signals, accumulate zombie processes, and refuse to stop gracefully. This guide compares three init process solutions: tini, dumb-init, and docker-init.

Self-Hosted Super-Server: systemd Socket Activation vs xinetd vs s6-networking

Fri, 22 May 2026 00:00:00 +0000

A super-server (also called an internet superserver) listens on multiple network ports and spawns the appropriate service daemon when a connection arrives. Instead of running dozens of services that each consume memory waiting for connections, a super-server centralizes port listening and launches services on demand.