Even having a DNS1 entry in /etc/sysconfig/network-script/ifcfg-eth0, if NM_CONTROLLED="yes" exists then my /etc/resolv.conf file will contain only the following line after upgrading and rebooting the node:
"options single-request"

At least that is what I have seen on my end.

Best regards,
Sebastian.


2015-08-07 18:48 GMT+01:00 Bonnie King <[log in to unmask]>:


On 08/07/2015 12:41 PM, Sebastian Luna Valero wrote:

# edit interface config to have: NM_CONTROLLED="no"
vim /etc/sysconfig/network-scripts/ifcfg-eth0


 You can add the following:

DNS1=some dns server

in the config file for your device(s).


By the way, why is this happening? Not sure whether it is a bad
configuration on my end or a bad move with recent updates.

 Network Manager creates resolv.conf dynamically.


--
Bonnie King
Assistant Group Leader
Scientific Linux & Architecture Management

Fermi National Accelerator Laboratory
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