On Fri, Jan 13, 2017 at 07:49:48AM -0500, TE Dukes wrote:
Hello,
I changed ISPs and need to update name servers in resolv.conf.
I have tried nano, gedit, Webmin, system-config-network and it won't allow me to make the changes.
I have Network Manager turned off and when I enable it , eth0 and eth1 have no entries.
I enabled it, added the connections, but still no changes.
I'm stuck
I know that in Fedora, resolv.conf is now some symlink to a NetworkManager file (I forget where).
Try doing ls -l /etc/resolv.conf, and see if that's the case in CentOS-7 as well. (I don't use NM, so I'm not sure what the case is with it, as the machine I'm using had that change made, if it was needed, long ago. :) )
If it does turn out to be a symlink, copy its information, if you need it, then delete the file, then recreate it.
Hope this helps, but I'm not sure. It is a working solution in Fedora.