[H-GEN] Bind from behind a firewall

[Snowy Angelique Maslov aka 'Snowpony']

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On Thu, 11 Sep 2003, Greg Black wrote:

> > > That has been set up since day one but no luck - will add UDP to see if that
> > > fixes it.
> > 
> > Considering DNS uses UDP & TCP - Im guessing it will particular since UDP is 
> > used for queries and TCP for zone transfers ;).
> 
> Close, but not quite right -- UDP is used for queries that fit
> in a UDP packet; TCP is the fallback mechanism for queries whose
> answers are truncated in a UDP response.  In any event,
> firewalls need a hole punched through them for both TCP and UDP
> on port 53.

Indeed you are correct there; I oversimplified.  Apologies.

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Snowy "Snowpony" Angelique Cerise Maslov -- http://snowy.org/email.signature
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