When the network interface providing dns is managed by network manager, dns fails on relaunch of the interface
test dns: dig x$(date +%N).blogspot.com +short if it fails, there is no output verify that Internet is available: dig @8.8.8.8 x$(date +%N).blogspot.com +short blogspot.l.googleusercontent.com. 216.58.194.129 provoke the problem: - unplug and re-plug the network interface (usb Ethernet) - or resume from standby quick-fix to regain working dns: restart Network Manager sudo systemctl restart NetworkManager - dns now works again Cause: for Ubuntu 16.10 Yakketi, this appeared shortly before 160926 probably with network-manager package 1.2.2-0ubuntu8 It appears the problem is fixed permanently by installing an old version of network-manager wget https://launchpad.net/ubuntu/+source/network-manager/1.2.2-0ubuntu4/+build/10026930/+files/network-manager_1.2.2-0ubuntu4_amd64.deb sudo dpkg -i network-manager_1.2.2-0ubuntu4_amd64.deb - this completes for 16.10 on 161112 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1629620 Title: DNS resolver stops accepting queries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1629620/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
