Question about port for NSLOOKUP

[hostmaster]

How can I make this work if its dynamically assigned?  There must be someway
I can block ports but still be able to use NSLOOKUP.

----- Original Message -----
From: Cricket Liu <cricket at acmebw.com>
To: <bind-users at isc.org>
Sent: Monday, April 24, 2000 3:27 PM
Subject: Re: Question about port for NSLOOKUP


> > I have a question I hope someone could help me with.  I'm trying to
block
> > "unused" tcp/ip ports on a server.  I'm able to successfully do that and
> > leave port 53 open for DNS.  However, it appears that nslookup stops
> working
> > and can't find the "default" nameserver.
> >
> > Question:  What TCP/IP or UDP port does NSLOOKUP need to operate
> > on besides port 53?  Does anyone know that.
>
> nslookup sends queries from a dynamically assigned
> ephemeral port to port 53.
>
> cricket
>
> Acme Byte & Wire
> cricket at acmebw.com
> www.acmebw.com
>
> Attend the next Internet Software Consortium/Acme Byte & Wire
> DNS and BIND class!  See www.acmebw.com/training.htm for
> the schedule and to register for upcoming classes.
>
>
>