I stopped mDNS with " sudo service avahi-daemon stop" but it keeps restarting

Question

I want to stop avahi-daemon (mDNS) and have it stay stopped.

It seems to restart a bit after midnight. Obviously some sort of periodic job is restarting it but I can't figure out what is.

TANGENT: I tried stopping avahi-daemon.service with systemctl but that did not work. Only the older style "service stop" stopped the service (albeit temporarily).

Solution

You need to stop socket. You can use this command:

sudo systemctl stop avahi-daemon.socket avahi-daemon.service

Also you can disable service forever and restart the system:

sudo systemctl disable avahi-daemon.service
reboot

To revert it run:

sudo systemctl enable avahi-daemon.service

Comments

[steeldriver]

What exactly happened when you used systemctl? did you try masking the service instead of just stopping it (sudo systemctl mask --now avahi-daemon.service)?