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Subject:	after ssh connection is getting closed
Date:	Wed, 9 Feb 2011 12:15:51 +0530
Message-ID:	<4A2CF3C24E05B348A46BAF5A7C4593D40F8E9004@BTCMVEXC1-PRD.hq.netapp.com>
From:	"Sarkar, Kaushik" <Kaushik DOT Sarkar AT netapp DOT com>
To:	<cygwin AT cygwin DOT com>
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After connecting through ssh immediately my connection is getting
closed.


C:\WINDOWS>ssh -vvv 10.72.248.117 -l cyg_server OpenSSH_5.7p1, OpenSSL
0.9.8q 2 Dec 2010
debug2: ssh_connect: needpriv 0
debug1: Connecting to 10.72.248.117 [10.72.248.117] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
Could not create directory '/home/sarkar/.ssh'.
debug1: identity file /home/sarkar/.ssh/id_rsa type -1
debug1: identity file /home/sarkar/.ssh/id_rsa-cert type -1
debug1: identity file /home/sarkar/.ssh/id_dsa type -1
debug1: identity file /home/sarkar/.ssh/id_dsa-cert type -1
debug1: identity file /home/sarkar/.ssh/id_ecdsa type -1
debug1: identity file /home/sarkar/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8
debug1: match: OpenSSH_5.8 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.7
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit:
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-
group-exchange-s
ha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,dif
fie-hellman-group1-sha1
debug2: kex_parse_kexinit:
ecdsa-sha2-nistp256-cert-v01 AT openssh DOT com,ecdsa-sha2-nistp384-cert-v01 AT op
enssh.com,ecdsa-
sha2-nistp521-cert-v01 AT openssh DOT com,ssh-rsa-cert-v01 AT openssh DOT com,ssh-dss-
cert-v01 AT openssh DOT com,ssh-rsa-cert-v00 AT opens
sh.com,ssh-dss-cert-v00 AT openssh DOT com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp
384,ecdsa-sha2-nistp521,ssh-rsa,ssh-dss
debug2: kex_parse_kexinit:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-c
bc,blowfish-cbc,
cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc AT lysator DOT liu DOT se
debug2: kex_parse_kexinit:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-c
bc,blowfish-cbc,
cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc AT lysator DOT liu DOT se
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64 AT openssh DOT com,hmac-ripemd160,hmac-ripemd160 AT ope
nssh.com,hmac-sh
a1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64 AT openssh DOT com,hmac-ripemd160,hmac-ripemd160 AT ope
nssh.com,hmac-sh
a1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib AT openssh DOT com,zlib
debug2: kex_parse_kexinit: none,zlib AT openssh DOT com,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit:
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-
group-exchange-s
ha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,dif
fie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256
debug2: kex_parse_kexinit:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-c
bc,blowfish-cbc,
cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc AT lysator DOT liu DOT se
debug2: kex_parse_kexinit:
aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-c
bc,blowfish-cbc,
cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc AT lysator DOT liu DOT se
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64 AT openssh DOT com,hmac-ripemd160,hmac-ripemd160 AT ope
nssh.com,hmac-sh
a1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,umac-64 AT openssh DOT com,hmac-ripemd160,hmac-ripemd160 AT ope
nssh.com,hmac-sh
a1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib AT openssh DOT com
debug2: kex_parse_kexinit: none,zlib AT openssh DOT com
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_setup: found hmac-md5
debug1: kex: server->client aes128-ctr hmac-md5 none
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA
fd:7e:e8:d3:c4:10:5d:74:1a:a1:f3:e2:c2:01:d5:3e
The authenticity of host '10.72.248.117 (10.72.248.117)' can't be
established.
ECDSA key fingerprint is
fd:7e:e8:d3:c4:10:5d:74:1a:a1:f3:e2:c2:01:d5:3e.
Are you sure you want to continue connecting (yes/no)? yes Failed to add
the host to the list of known hosts (/home/sarkar/.ssh/known_hosts).
debug1: ssh_ecdsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/sarkar/.ssh/id_rsa (0x0)
debug2: key: /home/sarkar/.ssh/id_dsa (0x0)
debug2: key: /home/sarkar/.ssh/id_ecdsa (0x0)
debug1: Authentications that can continue:
publickey,password,keyboard-interactive
debug3: start over, passed a different list
publickey,password,keyboard-interactive
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /home/sarkar/.ssh/id_rsa
debug3: no such identity: /home/sarkar/.ssh/id_rsa
debug1: Trying private key: /home/sarkar/.ssh/id_dsa
debug3: no such identity: /home/sarkar/.ssh/id_dsa
debug1: Trying private key: /home/sarkar/.ssh/id_ecdsa
debug3: no such identity: /home/sarkar/.ssh/id_ecdsa
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug1: Authentications that can continue:
publickey,password,keyboard-interactive
debug3: userauth_kbdint: disable: no info_req_seen
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred:
debug3: authmethod_is_enabled password
debug1: Next authentication method: password cyg_server AT 10 DOT 72 DOT 248 DOT 117's
password:
debug3: packet_send2: adding 48 (len 65 padlen 15 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug1: Authentication succeeded (password).
Authenticated to 10.72.248.117 ([10.72.248.117]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug1: Requesting no-more-sessions AT openssh DOT com
debug1: Entering interactive session.
debug2: callback start
debug2: client_session2_setup: id 0
debug2: fd 3 setting TCP_NODELAY
debug3: packet_set_tos: set IP_TOS 0x10
debug2: channel 0: request pty-req confirm 1
debug2: channel 0: request shell confirm 1
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0 Last login: Wed Feb  9
11:23:40 2011 from 10.73.26.6
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow AT openssh DOT com reply
0
debug2: channel 0: rcvd eow
debug2: channel 0: close_read
debug2: channel 0: input open -> closed
debug2: channel 0: rcvd eof
debug2: channel 0: output open -> drain
debug2: channel 0: obuf empty
debug2: channel 0: close_write
debug2: channel 0: output drain -> closed
debug2: channel 0: rcvd close
debug3: channel 0: will not send data after close
debug2: channel 0: almost dead
debug2: channel 0: gc: notify user
debug2: channel 0: gc: user detached
debug2: channel 0: send close
debug2: channel 0: is dead
debug2: channel 0: garbage collecting
debug1: channel 0: free: client-session, nchannels 1
debug3: channel 0: status: The following connections are open:
  #0 client-session (t4 r0 i3/0 o3/0 fd -1/-1 cc -1)

Connection to 10.72.248.117 closed.
Transferred: sent 2040, received 1648 bytes, in 2.3 seconds Bytes per
second: sent 873.3, received 705.5
debug1: Exit status 1

C:\WINDOWS>

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