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
When the network interface providing dns is managed by network manager, dns fails on relaunch of the interface
test dns:
dig x$(date +%N).blogspot.com +short
if it fails, there is no output
verify that Internet is available: l.googleusercon tent.com.
dig @8.8.8.8 x$(date +%N).blogspot.com +short
blogspot.
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 /launchpad. net/ubuntu/ +source/ network- manager/ 1.2.2-0ubuntu4/ +build/ 10026930/ +files/ network- manager_ 1.2.2-0ubuntu4_ amd64.deb manager_ 1.2.2-0ubuntu4_ amd64.deb
wget https:/
sudo dpkg -i network-
- this completes for 16.10 on 161112