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Is there a quick and dirty way to figure out what network manager (and no, not NetworkManager) a given distro is using to manage the machine's networking? Like Ubuntu 18.04+ uses netplan, CentOS uses NetworkManager, etc. Or am I stuck having to google this on a distro to distro basis?

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    Netplan is not a network manager. It uses either NetworkManager or systemd-networkd. And I doubt anybody has made a comprehensive list, especially since this can be configured. You don't even have to use a network manager; even Centos 8 can be turned back to the old ifupdown. Commented Mar 23, 2021 at 10:36
  • Ubuntu ( and Debian ) uses NetworkManager by default but also has ifupdown installed by default if you want to configure /etc/network/interfaces. Running networkctl will tell you whether systemd-networkd is running and managing any interfaces. Commented Mar 23, 2021 at 13:56

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I didn't find a way to do this other than try out one by one:

$ systemctl status NetworkManager.service
$ systemctl status systemd-networkd.service
$ systemctl status dhcpcd.service

My list is definitely not complete. Also, network managers can and sometimes are supposed to run simultaneously.

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