How to check the DNS I am using on Linux?

Posted on

My Linux distro is Linux Mint 17 (Ubuntu 14.04.1 LTS (Trusty Tahr)). I am using NetworkManager.

The old trick does not work:

$ cat /etc/resolv.conf 
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1

If you are using NetworkManager, the /etc/resolv.conf will point to your machine to dnsmasq as configured by NetworkManager. You can get the real DNS server you will use from NetworkManager by:

nm-tool | grep DNS

Eric Ma

Eric is a systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions expressed here are solely Eric's own and do not necessarily represent those of any third parties.

One comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Posts