Hi GammaPoint,
thank you for your report bing split from the already complex old report.
Lets try to get into your issue.

I think I understand that you set up your vpn and resolv in a way that
you expect any DNS info to be handled "there" inside your VPN but you
now see DNS requests being made out-of-band to that - which means "from
your computer to the remote DNS" instead of "from your computer to
something in your VPN and from there to the DNS". - That is my
understanding of a DNS leak, please confirm or correct.

Could you outline your setup about:
- how the DNS in the VPN is configured to cache/forward
- local resolver configuration /etc/resolvconf/* and /etc/resolv.conf
- any further local dns configuration (dnsmasq, named, whatever you have active)
- I think a "dig +trace <somedomain>" could be useful as well, IIRC we should 
see there which dns your system is asking.
- If the latter is a local dnsmasq or such try to check who its config is set 
to forward the request to

** Changed in: openvpn (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1685391

Title:
  DNS leak in Xubuntu 17.04

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