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ssh connection closed


I am running sshd per instructions from /usr/doc/Cygwin/openssh-3.6.1p1-2.README.
I choose no privilege speration at setup time
I have also set the following values in sshd_config:

    PasswordAuthentication yes
    RhostsAuthentication no
    RhostsRSAAuthentication no
    RSAAuthentication no

When I login via ssh I don't get asked for a password (I think
this is ok because I ran ssh-user-config).  My problem is
that I get kicked out immediately after logging in.  I used to be
able to login fine (even with the setgid failure as below); but now
I can't.  Something changed (don't ask me I've tried a lot of
different iterations).

How do I diagnose this problem further?
/var/log/sshd.log has not been modified for a long time
Is a solution apparent from the given info?

$ ssh -v localhost
OpenSSH_3.6.1p1, SSH protocols 1.5/2.0, OpenSSL 0x0090702f
debug1: Reading configuration data /etc/ssh_config
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: Connection established.
debug1: identity file /cygdrive/c/.ssh/identity type 0
debug1: identity file /cygdrive/c/.ssh/id_rsa type 1
debug1: identity file /cygdrive/c/.ssh/id_dsa type 2
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.6.1p1
debug1: match: OpenSSH_3.6.1p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.6.1p1
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: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'localhost' is known and matches the RSA host key.
debug1: Found key in /cygdrive/c/.ssh/known_hosts:15
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password,keyboard-interacti
ve
debug1: Next authentication method: publickey
debug1: Offering public key: /cygdrive/c/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 149 lastkey 0x100f9108 hint 1
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: channel 0: request pty-req
debug1: channel 0: request shell
debug1: channel 0: open confirm rwindow 0 rmax 32768
Last login: Thu Jun  5 07:13:15 2003 from jhudgins-pc.pc.there.com
Fanfare!!!
You are successfully logged in to this server!!!
setgid: Invalid argument
debug1: channel 0: rcvd eof
debug1: channel 0: output open -> drain
debug1: channel 0: obuf empty
debug1: channel 0: close_write
debug1: channel 0: output drain -> closed
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: rcvd close
debug1: channel 0: close_read
debug1: channel 0: input open -> closed
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 localhost closed.
debug1: Transferred: stdin 0, stdout 0, stderr 33 bytes in 0.3 seconds
debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 101.2
debug1: Exit status 1



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