[Swan] Building tunnel specifically for DNS

[Alex]

Hi,

I'm interested in building a tunnel between two Linux boxes
specifically to send DNS requests.

We've been having some problems with some DNS query responses being
dropped, and want to rule out the possibility they're being filtered
along the way. I thought if we could tunnel the DNS queries, perhaps
they wouldn't be filtered or otherwise dropped.

Is this possible? Do you have an idea of a config you could share?

Thanks,
Alex