Keith Keller wrote:
I don't mind NM editing resolv.conf if it knows
- or even thinks it knows - how to improve
on the current settings, but what I don't understand is why it occasionally deletes the current settings without substituting anything else. I can't imagine any situation where this would help? Maybe the present settings are defective in some way; but no settings cannot possibly be better.
No settings might be better. If I take my laptop from one site to another, keeping my previous resolv.conf intact, and NM doesn't remove it, then my laptop will try to query the previous site's DNS. They may not like that; depending on how paranoid they are, they may even take measures to block my traffic.
Does this happen? I've never encountered it. In my case, the probability of my DNS settings in resolv.conf not working in a new site is close to zero, so you are replacing something that might possibly not work by something that is certain not to work.