Clients didn't switch to secondary DNS server during fail over

Posted by The Digital Ninja on Server Fault See other posts from Server Fault or by The Digital Ninja
Published on 2012-06-08T04:30:23Z Indexed on 2012/06/08 4:41 UTC
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Filed under:

linux

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dns

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resolv.conf

I have two internal dns servers set up and all my servers have both of them in the resolv.conf Our main dns server went down and suddenly no server could see each other. I edited a few of the servers resolv.conf manually and committed out the first (down) dns server and that machine would instantly be able to ping again. What did I do wrong, does it not auto switch to the secondary dns server when it times out?

# File managed by puppet
nameserver 192.168.146.100
nameserver 192.168.159.101
;nameserver 72.14.188.5
domain example.com
search example.com

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