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 > 630-840-8761 office > 773-799-4608 cell > www.fnal.gov >