ssh connection refuses to connect once authenticated

From: GARCIA CABALLERO Jordi (Jordi.GARCIA_at_oami.eu.int)
Date: 12/04/03

  • Next message: david_at_hajek.net: "Public keys together with PAM" 
    To: secureshell@securityfocus.com
Date: Thu, 4 Dec 2003 15:19:58 +0100

    Hi all

    I have installed OpenSSH_3.0.2p1 and it has been running without problems
    for long. Today, when I have tried to connect to a couple of servers with my
    users it has left to work. It only works with root user.

    Everything looks to go well, even it appears the mesage regarding "last
    login", but short after that it appears the message "Connection to oasv009
    closed" and cut the connection.

    rsh, rlogin and telnet are working properly.

    Do you know what's happening ?

    Cheers,

    garcijo@oasv128:/home/garcijo $ ssh -v oasv009
    OpenSSH_3.0.2p1, SSH protocols 1.5/2.0, OpenSSL 0x0090603f
    debug1: Reading configuration data /usr/etc/ssh_config
    debug1: Seeded RNG with 49 bytes from programs
    debug1: Seeded RNG with 3 bytes from system calls
    debug1: Rhosts Authentication disabled, originating port will not be
    trusted.
    debug1: restore_uid
    debug1: ssh_connect: getuid 7132 geteuid 0 anon 1
    debug1: Connecting to oasv009 [10.15.56.1] port 22.
    debug1: temporarily_use_uid: 7132/1 (e=0)
    debug1: restore_uid
    debug1: temporarily_use_uid: 7132/1 (e=0)
    debug1: restore_uid
    debug1: Connection established.
    debug1: read PEM private key done: type DSA
    debug1: read PEM private key done: type RSA
    debug1: identity file /home/garcijo/.ssh/identity type 0
    debug1: identity file /home/garcijo/.ssh/id_rsa type 1
    debug1: identity file /home/garcijo/.ssh/id_dsa type 2
    debug1: Remote protocol version 1.99, remote software version
    OpenSSH_3.0.2p1
    debug1: match: OpenSSH_3.0.2p1 pat ^OpenSSH
    Enabling compatibility mode for protocol 2.0
    debug1: Local version string SSH-2.0-OpenSSH_3.0.2p1
    debug1: SSH2_MSG_KEXINIT sent
    debug1: SSH2_MSG_KEXINIT received
    debug1: kex: server->client aes128-cbc hmac-md5 none
    debug1: kex: client->server aes128-cbc hmac-md5 none
    debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
    debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
    debug1: dh_gen_key: priv key bits set: 129/256
    debug1: bits set: 1640/3191
    debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
    debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
    debug1: Host 'oasv009' is known and matches the RSA host key.
    debug1: Found key in /home/garcijo/.ssh/known_hosts2:18
    debug1: bits set: 1607/3191
    debug1: ssh_rsa_verify: signature correct
    debug1: kex_derive_keys
    debug1: newkeys: mode 1
    debug1: SSH2_MSG_NEWKEYS sent
    debug1: waiting for SSH2_MSG_NEWKEYS
    debug1: newkeys: mode 0
    debug1: SSH2_MSG_NEWKEYS received
    debug1: done: ssh_kex2.
    debug1: send SSH2_MSG_SERVICE_REQUEST
    debug1: service_accept: ssh-userauth
    debug1: got SSH2_MSG_SERVICE_ACCEPT
    debug1: authentications that can continue: publickey,keyboard-interactive
    debug1: next auth method to try is publickey
    debug1: try pubkey: /home/garcijo/.ssh/id_rsa
    debug1: authentications that can continue: publickey,keyboard-interactive
    debug1: try pubkey: /home/garcijo/.ssh/id_dsa
    debug1: input_userauth_pk_ok: pkalg ssh-dss blen 433 lastkey 12f450 hint 2
    debug1: read PEM private key done: type DSA
    debug1: ssh-userauth2 successful: method publickey
    debug1: channel 0: new [client-session]
    debug1: send channel open 0
    debug1: Entering interactive session.
    debug1: ssh_session2_setup: id 0
    debug1: channel request 0: shell
    debug1: channel 0: open confirm rwindow 0 rmax 16384
    Last login: Thu Dec 4 14:56:49 2003 from oasv128
    debug1: channel 0: rcvd eof
    debug1: channel 0: output open -> drain
    debug1: channel 0: obuf empty
    debug1: channel 0: output drain -> closed
    debug1: channel 0: close_write
    debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0
    debug1: channel 0: rcvd close
    debug1: channel 0: input open -> closed
    debug1: channel 0: close_read
    debug1: channel 0: almost dead
    debug1: channel 0: gc: notify user
    debug1: channel 0: gc: user detached
    debug1: channel 0: send close
    debug1: channel 0: is dead
    debug1: channel 0: garbage collecting
    debug1: channel_free: channel 0: client-session, nchannels 1
    Connection to oasv009 closed.
    debug1: Transferred: stdin 0, stdout 0, stderr 31 bytes in 0.1 seconds
    debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 365.1
    debug1: Exit status -1
    debug1: writing PRNG seed to file /home/garcijo/.ssh/prng_seed

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