NetworkManager doesn't update resolv.conf on startup
To reproduce the issue I am seeing:
- Setup ethernet connection providing DNS servers (e.g. 22.214.171.124)
- Shutdown machine
- Unplug ethernet cable
- Boot machine
- resolv.conf is left the same as it was before shutdown, with (now uncontactable) DNS servers.
Is there some way to change this behaviour? I am on CentOS 7.6 with the resolv.conf mode set to default (