I am new to the Ubuntu community and the intricacies of openvpn, networkmanager etc but I can confirm this bug on Ubuntu 16.04. I can also confirm the following workarond.
When I disable dnsmasq in NetworkManager, add script-security 2 and up & down stanzas for /etc/openvpn/update-resolv-conf the DNS servers are added to /etc/resolv.conf. But when I stop the foreground openvpn process with ctrl-c the previous pushed DNS servers /etc/resolv.conf are not removed. Ideally /etc/resolv.conf would be restored to the way it was before the openvpn connection. I would like to help out with this but I don't know which system (openvpn, resolvconf, dnsmasq, networkmanager) would or should be responsible for this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1211110 Title: network manager openvpn dns push data not updating system DNS addresses To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1211110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs