From owner-freebsd-questions  Sat Jan 20 14:46:11 2001
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Date: Sat, 20 Jan 2001 14:45:54 -0800 (PST)
From: Tyler McGeorge <millioncheese@yahoo.com>
Subject: Re: problem with Telnet
To: Bill Moran <wmoran@mail.iowna.com>
Cc: questions@freebsd.org
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Wow, that makes sense. I probably should have thought
of that, but I didn't, because I'm not very familiar
with Unix.

--- Bill Moran <wmoran@mail.iowna.com> wrote:
> Tyler McGeorge wrote:
> > 
> > I think I may have had a similar problem. I was
> able
> > to actually connect if I waited a long time. Which
> > means extending the timeout period of you FTP
> client,
> > usually. After I established a domain name for my
> > computer that was valid, the telnet works much
> faster.
> > As in, I was able to instantly connect. And after
> I
> > setup a BIND name daemon, my FTP connections were
> > established almost instantaneously as well. I,
> too,
> > asked about that problem on newgroups and on this
> > list, but didn't not recieve any explanation. I
> would
> > be curious to know why this happens, so if you
> could,
> > let me know if you figure out the cause(s).
> 
> The ftpd server is doing a reverse lookup on the ip
> address of the
> connecting host. If you don't have a DNS server to
> serve these answers
> out, it will take a long timeout before you connect.
> Potentially your
> client could give up on the connection before it
> actually gets to a
> login prompt.
> In /etc/inetd.conf, edit the line with ftp on it to
> remove the -l
> option. This should disable reverse lookups. The
> correct solution,
> however, is to have a DNS server set up that will
> respond to the
> lookups.
> 
> -Bill


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