nanog mailing list archives

Re: Has PSI been assigned network 1?


From: randy () psg com (Randy Bush)
Date: Mon, 24 Apr 95 09:25 PDT

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


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