*BSD News Article 93495


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From: Tony Griffiths <tonyg@OntheNet.com.au>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD 2.2.0 & 2.2.1
Date: Mon, 14 Apr 1997 14:53:42 +1000
Organization: On the Net (ISP on the Gold Coast, Australia)
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To: Byung Yang <byung@wam.umd.edu>
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Byung Yang wrote:
> 
> I am using FreeBSD 2.2.0 and there is some server that uses FreeBSD 2.2.1.
> The problem is that I cannot connect to the server.  When I try to telnet
>
> to freebsd 2.2.1, i just can't connect directly from my box.
> Does anyone have any idea? or is it one of the bugs in the new releases?

There are two possible sources of error...

	(a) IP routing
	(b) DNS

In the case of (a), it is possible to have a route that gets your
packets to the remote end, but it lacks a route back to you.

In the case of (b), I have often seen where a misconfigured machine (DNS
wise) will take several minutes to timeout when attenpting to reverse
lookup your IP address.  Check that both your forward (name to IP) and
reverse (IP to name) DNS is working on both machines!

Of course, someone may have been playing with /etc/services and
/etc/inetd.conf and totally screwed thing up!!!

Tony