I would NOT recommend, using /lib/systemd/system/coturn.service directly. It's bound to be overwritten the next time the package ist updated.
Changes to systemc units should go in /etc/systemd/system/coturn.service.d/override.conf and can best be applied using the command systemctl edit coturn The overide.conf file needs only the two lines mentioned above: [Service] AmbientCapabilities=CAP_NET_BIND_SERVICE -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911860 Title: coturn does not start after update of Jan 13 '21 (20.04.1 LTS) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/coturn/+bug/1911860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs