> When I'm done with my wimax network, I just unplug the modem from the usb port without manual invocation of any command.
The dhclient process for your wimax interface adds nameserver addresses to the system (via resolvconf) that are accessible over the wimax interface. When the wimax interface is disabled, those nameserver addresses should be removed. If dhclient doesn't do this automatically you may have to help it by stopping the process gracefully. See dhclient(8), especially the part about the -r and -x options. What's mysterious about the behavior your originally reported is (IIUC) that the dhclient process for wlan0 adds nameserver addresses and then removes them a few seconds later. Have you figured out why this happens? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/994227 Title: resolvconf breaks name resolution To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/994227/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs