And finally, it seems there was already some work in progress for this in one of the branches on openvpn github up until recently:
https://github.com/OpenVPN/openvpn/blob/release/2.4/src/openvpn/block_dns.c Branch: Release/2.4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1652525 Title: DNS leak in ubuntu 16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1652525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs