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Date:      Wed, 24 Jul 2002 15:51:58 -0400 (EDT)
From:      "Chris A. Mattingly" <camattin@camattin.com>
To:        twig les <twigles@yahoo.com>
Cc:        Peter Pentchev <roam@ringlet.net>, <freebsd-security@FreeBSD.ORG>
Subject:   Re: SSH problem (was ssh cipher)
Message-ID:  <20020724155021.A65279-100000@crazytrain.camattin.com>
In-Reply-To: <20020724193325.92208.qmail@web10107.mail.yahoo.com>

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On Wed, 24 Jul 2002, twig les wrote:

> SSH Version OpenSSH_2.3.0 FreeBSD localisations
> 20010713, protocol versions 1.5/2.0.
> Compiled with SSL (0x0090601f).
> debug: Reading configuration data /etc/ssh/ssh_config
> debug: ssh_connect: getuid 1001 geteuid 1001 anon 1
> debug: Connecting to (null) [10.20.0.90] port 22.
> debug: Connection established.
> ssh_exchange_identification: Connection closed by
> remote host
> debug: Calling cleanup 0x8058204(0x0)
> <snip>
>
> Things I've ruled out:
> Incompatibility with ssh.com and openssh (can ssh from
> sniffer to ssh.com boxes).
> Wrong user
> Wrong listening port
> Unallowed source IP (I can telnet in, but not SSH)
> Wrong cipher - it's using 3des
>
> Am I destined to bang my head on the desk and load
> Warcraft 3?

This sounds like /etc/hosts.deny and/or /etc/hosts.allow dropping
the connection.  When I add 127.0.0.1 into a deny statement, I get
the same scenario:

(Just one -v used for brevity)

% ssh -v localhost
OpenSSH_3.4p1, SSH protocols 1.5/2.0, OpenSSL 0x0090604f
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Rhosts Authentication disabled, originating port will not be
trusted.
debug1: ssh_connect: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: Connection established.
debug1: identity file /local/users/cmatting/.ssh/identity type 0
debug1: identity file /local/users/cmatting/.ssh/id_rsa type 1
debug1: identity file /local/users/cmatting/.ssh/id_dsa type 2
ssh_exchange_identification: Connection closed by remote host
debug1: Calling cleanup 0x3ef20(0x0)



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