I'm having the same problem that DNS resolution stops working after a VPN connection (Cisco VPN) is established. However changing /etc/nsswitch.conf like in comment #20 does NOT work for me. I still get *unknown host* messages from ping.
I'm running LTS 12.04 $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1086459 Title: Name resolution over VPN fails; mdns4_minimal returns NOTFOUND To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nss-mdns/+bug/1086459/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
