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Date:      Mon, 3 Mar 2003 10:26:09 -0600
From:      Wayne Barnes <currently@klentaq.com>
To:        Andre Guibert de Bruet <andy@siliconlandmark.com>
Cc:        current@freebsd.org
Subject:   Re: can't sshd into box
Message-ID:  <20030303102609.B70601@klentaq.com>
In-Reply-To: <20030303101317.P59207@alpha.siliconlandmark.com>; from andy@siliconlandmark.com on Mon, Mar 03, 2003 at 10:48:15AM -0500
References:  <20030303000955.A69139@klentaq.com> <20030303020915.B59207@alpha.siliconlandmark.com> <3E6303EE.9516823A@mindspring.com> <20030303101317.P59207@alpha.siliconlandmark.com>

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Dear Andre,

    Yes, I can telnet and ssh on loopback.  Boy, that debug setting
on the telnetd sure dumps a lot of output on the telnet side (but
is still silent on the screen where I started it).

          - Wayne

On Mon, Mar 03, 2003 at 10:48:15AM -0500, Andre Guibert de Bruet wrote:
> 
> On Sun, 2 Mar 2003, Terry Lambert wrote:
> 
> > Andre Guibert de Bruet wrote:
> > > On Mon, 3 Mar 2003, Wayne Barnes wrote:
> > > >     Immediately after rebooting, I get this:
> > > >
> > > > root@etaq3:/home/wayne>telnetd -debug
>                              ^^^^^^^
> > > > telnetd: bind: Address already in use
> > > >
> > > >     This doesn't happen on my other (working) system.
> > > >     Could this be a clue to my problem?
> > >
> > > Telnetd is telling you that something else is listening on port 23. This
> > > is most probably inetd. Do a 'killall inetd' then try that command.
> >
> > That's not only going to stop inetd from sitting on the port,
> > it will probably also make telnet into the box start working,
> > if it's related to the TCP wrappers (if he had modified his
> > hosts.allow with the advice from a previous poster, he would
> > not be having this problem, if that happens, so rather than
> > posting his problem over and over again, maybe he should read
> > the responses, and at least tell us if they worked?).
> >
> > Otherwise, another common culprit is ipfw; if he has the
> > firewall enabled, the default is to block everything.
> >
> > Given that he got a connection, and that it was subsequently
> > closed, though, rather than not getting a connection at all,
> > it's a safe bet that it's the TCP wrappers, not the ipfw, that
> > is causing the trouble.
> >
> > In which case, he should take the advice on the hosts.allow
> > file contents that he was given earlier, and it will fix his
> > problem...
> 
> Terry,
> 
> Part of the original message said the following:
> <quote>
>     I have installed 5.0 into a new Dell.  I have not set up anything
> special yet (no firewall, no natd, etc.).
> <...>
>     Is there a new default connecton protection that I must turn off, or
> something?  [/etc/hosts.allow  is the default setting, I see no answer
> there.]
> </quote>
> 
> If I recall correctly, we don't ship GENERIC with any firewalling options
> enabled, so like you said, this is not likely to be a firewalling issue.
> 
> 5.0R's /etc/hosts.allow shipped with something like the following at the
> top of the file:
> # Start by allowing everything (this prevents the rest of the file
> # from working, so remove it when you need protection).
> # The rules here work on a "First match wins" basis.
> ALL : ALL : allow
> 
> If Wayne was trying to run 'telnetd -debug', would it not make sense for
> him to kill inetd first (or at least reconfigure inetd.conf then hup it)
> before running the daemon in debug mode at the command line?
> 
> Wayne: Can you successfully login using telnet over the loopback
> interface?
> 
> Regards,
> 
> > Andre Guibert de Bruet | Enterprise Software Consultant >
> > Silicon Landmark, LLC. | http://siliconlandmark.com/    >
> 
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-- 

   --  Wayne M Barnes, currently@klentaq.com

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