Reboot or Shutdown Debian from Command Line - Query Admin
Debian: How to restart networking | manurevah Unfortunately, in recent versions of Debian, this no longer seems to work. I've searched and searched, I've asked and I've tried. There seems to be ways, not reliable though and definitely not easy to remember. "service networking restart" doesn't do what it should do, restart the network. 8.1. Shutting down the system - Debian Alternatively you can press the key combination Ctrl+Alt+Del. A last option is to log in as root and type one of thecommands poweroff, haltorshutdown -h nowif either of the key combinations do notwork or you prefer to type commands; use rebootto rebootthe system. How To Restart SSH Service under Linux / UNIX - nixCraft
How to Shutdown or Reboot Debian 10 (Buster)
Aug 19, 2019 debian - How to restart service in bash script? - Unix
The only problem with this answer is that it's not always true. See geotheory's comment underneath the question. I, too, was bit by this. I made a change to the crontab file via sudo crontab -e, saved the change by Ctrl + X, and went away assuming cron would pick it up (due to this answer being so highly upvoted). Then, days later my client reports that the cron is still running on the old cycle.
Install and Configure ISC DHCP Server in Debian 9 Mar 26, 2019