Hell yeah, I know SLES11 is absolute / not supported anymore. The latest version are SLES11 SP4, but I still using it on my test server. Hmm.. sometimes I forgot how to configure DNS on Suse Linux Enteprise Server (SLES) 11 then I believe puts public notes on my weblog will be great for everyone reference!

back to the topic, setup dns is easier to just overwrite generated file /etc/resolv.conf directly

example:

$ vim  /etc/resolv.conf
# Generated by dhcpcd for interface eth1
search localdomain
nameserver 192.168.100.2
nameserver 1.1.1.1
nameserver 8.8.8.8

After that execute /etc/init.d/network restart

Edit