Upstream seems to disagree with the IP_FREEBIND implementation, as per https://bugzilla.samba.org/show_bug.cgi?id=13463. The reason behind it is that the daemon should fail for invalid ip addresses.
Adding After=network-online.target is frowned upon by systemd upstream. Following up with upstream to exit with a non-zero code seems to be the path forward here. ** Tags added: server-todo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1774788 Title: Daemon won't start at boot up (18LTS fully patched) To manage notifications about this bug go to: https://bugs.launchpad.net/rsync/+bug/1774788/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs