Re: Diagnosing virtual machine network issues

On Aug 2, 2024, at 3:52 PM, Alex Arslan <ararslan@comcast.net> wrote:
> 
>> Just a comment and a name server line:
>> 
>> $ cat /etc/resolv.conf
>> # Generated by resolvconf
>> nameserver 192.168.122.1
> 
> I believe that is the host IP, so I guess the VM is using the host for DNS
> resolution? Interestingly, if I add `nameserver 8.8.8.8` below the line
> with the host IP, it takes 10 seconds rather than 30 to reach the expected
> domain resolution failure. If I put 8.8.8.8 above the host IP, the domain
> resolution failure is instantaneous.

What does your host use as a namesever?

> Not a particularly satisfying conclusion to this saga as I don't understand
> why it's happening but at least I have a workaround that should hopefully
> do the job. I really appreciate everyone's help and input thus far!
> 
> What's the best way to add `nameserver 8.8.8.8` to /etc/resolv.conf as
> part of the VM's configuration?

You should diagnose the problem of the nameserver at 192.168.122.1
and fix it to act properly. I don't use vm (just bhyve) so can't help
you with its config.