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Date:      Tue, 15 Jan 2002 21:02:32 +0000
From:      Neil McGann <neil@neilmcgann.co.uk>
To:        questions@freebsd.org
Subject:   PAM password authorisation problem in sshd
Message-ID:  <5.1.0.14.0.20020115204431.00a0a950@pop.ntlworld.com>

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Hi All,

A newbie question. I appear to have broken ssh after upgrading 4.4-Release 
to 4.4-stable (this week).

I've been following instructions in FreeBSD-STABLE_and_IPFILTER.html (less 
tripwire) and I had everything including ssh working great. Following 
upgrade (including mergemaster) I can't log in with sshd. The messages go:

Jan 15 07:53:11 janus sshd[87]: debug1: Forked child 120.
Jan 15 07:53:11 janus sshd[120]: Connection from 192.168.0.2 port 1115
Jan 15 07:53:11 janus sshd[120]: Connection from 192.168.0.2 port 1115
Jan 15 07:53:11 janus sshd[120]: debug1: Client protocol version 2.0; 
client software version PuTTY
Jan 15 07:53:12 janus sshd[120]: debug1: no match: PuTTY
Jan 15 07:53:12 janus sshd[120]: Enabling compatibility mode for protocol 2.0
Jan 15 07:53:12 janus sshd[120]: debug1: Local version string 
SSH-2.0-OpenSSH_2.9 FreeBSD localisations 20011202
Jan 15 07:53:12 janus sshd[120]: debug1: Rhosts Authentication disabled, 
originating port not trusted.
Jan 15 07:53:12 janus sshd[120]: debug1: list_hostkey_types: ssh-dss
Jan 15 07:53:12 janus sshd[120]: debug1: SSH2_MSG_KEXINIT sent
Jan 15 07:53:12 janus sshd[120]: debug1: SSH2_MSG_KEXINIT received
Jan 15 07:53:12 janus sshd[120]: debug1: kex: client->server 3des-cbc 
hmac-sha1 none
Jan 15 07:53:12 janus sshd[120]: debug1: kex: server->client 3des-cbc 
hmac-sha1 none
Jan 15 07:53:12 janus sshd[120]: debug1: dh_gen_key: priv key bits set: 197/384
Jan 15 07:53:12 janus sshd[120]: debug1: bits set: 495/1024
Jan 15 07:53:12 janus sshd[120]: debug1: expecting SSH2_MSG_KEXDH_INIT
Jan 15 07:53:12 janus sshd[120]: debug1: bits set: 518/1024
Jan 15 07:53:12 janus sshd[120]: debug1: sig size 20 20
Jan 15 07:53:12 janus sshd[120]: debug1: kex_derive_keys
Jan 15 07:53:12 janus sshd[120]: debug1: newkeys: mode 1
Jan 15 07:53:12 janus sshd[120]: debug1: SSH2_MSG_NEWKEYS sent
Jan 15 07:53:12 janus sshd[120]: debug1: waiting for SSH2_MSG_NEWKEYS
Jan 15 07:53:12 janus sshd[120]: debug1: newkeys: mode 0
Jan 15 07:53:12 janus sshd[120]: debug1: SSH2_MSG_NEWKEYS received
Jan 15 07:53:12 janus sshd[120]: debug1: KEX done
Jan 15 07:53:18 janus sshd[120]: Could not reverse map address 192.168.0.2.
Jan 15 07:53:18 janus sshd[120]: debug1: userauth-request for user nmcgann 
service ssh-connection method password
Jan 15 07:53:18 janus sshd[120]: debug1: attempt 0 failures 0
Jan 15 07:53:18 janus sshd[120]: debug1: Starting up PAM with username 
"nmcgann"
Jan 15 07:53:18 janus sshd[120]: Failed password for nmcgann from 
192.168.0.2 port 1115 ssh2
Jan 15 07:53:22 janus sshd[120]: fatal: Read from socket failed: Connection 
reset by peer

My freeBSD machine is called janus and the remote machine's IP is 192.168.0.2.

I've searched the web/archives for clues, but the closest problem I've 
found is due to people not running mergemaster. Any ideas of where to look 
next?

Neil
--
neil@neilmcgann.co.uk


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