North American Network Operators Group
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Re: Has PSI been assigned network 1?

  • From: Brett Watson
  • Date: Mon Apr 24 15:43:31 1995 
Randy Bush
> 
> > For DNS to be usable, folks have to permit TCP DNS to work. I know of
> > some service providers that filter TCP DNS connections. UDP packets are not
> > big enough for many responses from an whois-type request.
> 
> Good point.  As an addendum, those wishing to prevent zone transfers can use
> BIND's xfernets control to achieve this, and thus allow large responses
> while inhibiting undesired zone transfers.
> 
> randy
>