Confirming this is broken. Dropping the patch 0001-dns-use-DBus-to-make- dnsmasq-nameserver-changes.patch in network-manager (1.2.4-0ubuntu0.16.04.1) was done, but it looks like not all the code in that patch was actually upstream.
** Changed in: network-manager (Ubuntu) Status: New => Confirmed ** Changed in: network-manager (Ubuntu) Importance: Undecided => High ** Tags added: regression-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754671 Title: Full-tunnel VPN DNS leakage regression To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1754671/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs