with dnsmasq server setup to provide dhcp with 1m lease timeout, just run dhclient on test system:
ubuntu@lp1805183-d:~$ dpkg -l systemd|grep ii ii systemd 240-6ubuntu5.7 amd64 system and service manager ubuntu@lp1805183-d:~$ journalctl -b -u systemd-resolved | grep Started Nov 14 16:02:12 lp1805183-d systemd[1]: Started Network Name Resolution. ubuntu@lp1805183-d:~$ sudo dhclient ens8 ubuntu@lp1805183-d:~$ journalctl -b -u systemd-resolved | grep Started Nov 14 16:02:12 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:04:32 lp1805183-d systemd[1]: Started Network Name Resolution. ubuntu@lp1805183-d:~$ sleep 900 ; journalctl -b -u systemd-resolved | grep Started Nov 14 16:02:12 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:04:32 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:05:22 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:06:11 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:06:57 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:07:52 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:08:41 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:09:25 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:10:17 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:11:03 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:11:51 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:12:33 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:13:24 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:14:16 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:15:11 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:16:03 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:16:46 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:17:34 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:18:23 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:19:16 lp1805183-d systemd[1]: Started Network Name Resolution. ubuntu@lp1805183-d:~$ dpkg -l systemd|grep ii ii systemd 240-6ubuntu5.8 amd64 system and service manager ubuntu@lp1805183-d:~$ journalctl -b -u systemd-resolved | grep Started Nov 14 16:21:20 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:29:41 lp1805183-d systemd[1]: Started Network Name Resolution. ubuntu@lp1805183-d:~$ sudo dhclient ens8 cmp: EOF on /tmp/tmp.qY6fTBCaSb which is empty ubuntu@lp1805183-d:~$ sleep 900 ; journalctl -b -u systemd-resolved | grep Started Nov 14 16:21:20 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:29:41 lp1805183-d systemd[1]: Started Network Name Resolution. Nov 14 16:30:51 lp1805183-d systemd[1]: Started Network Name Resolution. ** Tags removed: verification-needed-disco ** Tags added: verification-done-disco -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805183 Title: systemd-resolved constantly restarts on Bionic upgraded from Xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1805183/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
