On Sun, 16 Feb 2020 17:53:59 -0500 Tom Horsley wrote:
# nmcli con mod net-eth0 ipv4.ignore-auto-dns yes
Sounds like what I want, I've just resurrected an old system and installed f31 so I can try experimenting with network manager. I'll see how it goes. Thanks.
I've been experimenting, and the ignore-auto-dns setting does indeed seem to work (in fact, nm seems to update the ifcfg file with PEERDNS=no so they really are the same). I can edit resolv.conf and it doesn't get modified by nm.
Then I went and did it, I decided to try to setup a bridge as the master with eth0 attached to it. I pretty much followed the instructions here:
https://www.cyberciti.biz/faq/how-to-add-network-bridge-with-nmcli-networkma...
It sort of works, but when I boot the system, there is no network at all for several seconds. I have time to run "ip addr" three or four times after logging in before br0 shows up with an IP address.
In journalctl output, I see errors for network manager wait online failing with status=1, then a little bit after that I see it bringing br0 online.
There wasn't any mysterious delay when it was just eth0.
I guess I'll poke around some more and see if I can figure out what the delay is all about.