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Mehraban
Asked: 2017-03-14 21:44:27 +0800 CST

Problem in Ubuntu 16.04 DNS resolution

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My primary DNS Server is 4.2.2.4. Sometimes my machine cannot resolve any host name like this:

~ ping google.com            
ping: unknown host google.com

But I can ping 4.2.2.4 and even lookup host names like this:

~ nslookup google.com 4.2.2.4
Server:     4.2.2.4
Address:    4.2.2.4#53

Non-authoritative answer:
Name:   google.com
Address: 216.58.209.174

Restarting network-manager service solves this problem. I wonder what causes this to happen?

networking

1 Answers

  1. Best Answer

    I commented out dns=dnsmasq from /etc/NetworkManager/NetworkManager.conf and dns now works as it should.

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