Linux Kernel Architecture & Systemd | Linux Course – Ep 4

Episode 14 — UNIX Process Groups & Sessions | Chapter 3 In production, processes aren’t just commands — they’re services. Daemons detach from terminals, create new sessions, and run in their own control domain so a logout or hangup doesn’t kill critical systems. That session boundary isn’t just operational, it’s security. It prevents random signals from interactive users, allows supervisors like systemd to manage services cleanly, and makes recovery possible when things go wrong. Understanding s