One of the files that the average Unix sysadmin rarely looks at, almost never changes and yet depends on every time he or she reboots a system is the /etc/inittab file. This modest little file ...
One of the most crucial pieces of any UNIX-like operating system is the init dæmon process. In Linux, this process is started by the kernel, and it's the first userspace process to spawn and the last ...
On most Linux devices, you can run "systemctl --type=service --state=running" to see running services. Get detailed information about a service, SSH for example, with the command "systemctl status ...