On Tue, Dec 03, 2019 at 01:17:53PM -0600, Michael Hennebry wrote:
I only have ifcfg-lo , which I am pretty sure is the loopback interface. As expected, other files suggest eth0 is my ethernet connection. Should I add a one-line ifcfg-eth0 file?
If you are using ethernet (and not a wireless device or some other internet connectivity) you should have an ifcfg- file for the interface. Look at the output of 'ip link' to see all the interfaces you have configured.
Currently I have # Generated by NetworkManager # search midcoip.net nameserver 2001:48f8:3004:2ce:5a19:f8ff:fe9e:a4bc nameserver 192.168.0.1
My understanding is that the network manager generates resolv.conf and DHCP edits it. Does the network manager include nameservers? Would putting PEERDNS=no in a ifcfg-eth0 file result in an empty resolv.conf ? I realize I could just try it and see, but I do not know how much damage I could do if I mess it up.
Since there's no ifcfg file, I suspect you're using NetworkManager to manage your network. Run 'nmcli con' to get a list of your network connections, and then run 'nmcli con edit "Connection Name"' (replace "Connection Name" with the name of your ethernet connection). You can then set ipv4.ignore-auto-dns to 'yes' and then set ipv4.dns and ipv4.dns-search. This should override what DHCP sets.
This is documented in /usr/share/doc/initscripts-*/sysconfig.txt
I have /usr/share/doc/initscripts-9.49.47/sysconfig.txt only.
I used the * as a glob, not a literal character.