CentOS extremely slow DNS lookup

127.0.0.1 is your localhost loopback interface, meaning you're reaching your own server. For various reasons, your server is using that first to lookup DNS and since your server doesn't know how to answer a DNS query, you have to wait until the query times out and moves on to the 2nd nameserver.

Just use the real DNS nameserver as the only entry:

nameserver 213.186.33.99

Why do you even have 127.0.0.1 as a nameserver?

Tags:

Linux

Networking

Redhat

Centos

Domain Name System

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