godFuture
I tried quite a lot to make sure all my dns requests are properly routed through my vpn. But somehow I guess I went the wrong direction...
As with systemd the nameserver in resolve.conf is the localhost (systemd stub resolver), the current order in which nameservers are used was never really clear to me. At least I was sure that my dns dhcp-option was not applied after I had connected to my vpn (tested with systemd-resolve xxx).
Now my question is, what is the official way to route ALL traffic including DNS requests through the vpn considering that Ubuntu 17.10 with systemd is in place?
Addtionally, I would be interested if the solution works with network-manager-openvpn, because it would allow me to use the built-in gui of my OS...