I'm now thinking of going back into this issue. Definitely the problem appeared when installing cups as it requires avahi+mdns packages. This sounds quite fair if cups is to autodetect printers in the LAN.
I've been reading more about mdns. I remember that previously I removed it in certain host to avoid delays in SSH connections and now I have been reading again about it at bug #94940 https://bugs.launchpad.net/ubuntu/+source/nss-mdns/+bug/94940. If the delay is caused by mdns it may be amplified when having an interface configured as multiple VLAN sub-interfaces. Cheating nsswitch.conf sounds easier than completely removing avahi+mdns... So, I would like to know if the rest of the people have avahi+mdns installed and what does their host entry in nsswitch.conf look like. I'm quite confident that keeping "hosts: files dns" as it is now (with avahi+mdns uninstalled) may help in my case. We also have a MS AD with a .local private domain but I doubt this may interfere as both AD servers switch off every day a couple of minutes before our Ubuntu host does. ¿Do you have .local AD in your LANs? David -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1010045 Title: 12.04 hangs on shutdown deconfiguring network interfaces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1010045/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
