From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010809 Description of problem: In previous releases of RHL, setting DNS1 or DNS2 or DNS3 in /etc/sysconfig/network-scripts/ifcfg-<interface> would let you specify DNS server addresses to be set in /etc/resolv.conf when that interface was brought up. This was very useful for CIPE tunnels, as the DNS on the other end knew about addresses behind a firewall, which most servers don't know about. Version-Release number of selected component (if applicable): 6.32-1 How reproducible: Always Steps to Reproduce: 1.Create a CIPE tunnel using r-c-n. 2.Set DNS1=127.0.0.1 in /etc/sysconfig/network-scripts/ifcfg-cipcb0 3.Verify that /etc/resolv.conf does not list 127.0.0.1 as the first nameserver. 4.Bring the interface up. Actual Results: /etc/resolv.conf is unchanged. Expected Results: /etc/resolv.conf should list 127.0.0.1 as the first nameserver.
Does redhat-config-network automatically set PEERDNS=no?
default setting for PEERDNS is no. To enable it you should have to activate it in Protocol->Hostname->Automatically obtain DNS information from provider.