name resolution

Hi guys, I am currently struggling with the name resolution while using openvpn. I'd like to use a different name server when starting for the interface tun0 after successfully starting my VPN connection. The tool resolvconf should handle the issue but I've trouble to setup a appropriate...

In a standard configuration with /etc/resolv.conf, e.g.:nameserver a.b.c.d nameserver w.x.y.zif the first server a.b.c.d is queried, and it responds, the second one won't be used. What if a.b.c.d is not able to resolve a hostname, but w.x.y.z can? What is the easiest mechanism to jump to the...