Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Subject: Connection closed message when trying to connect with sftp using public key authentication to OpenSSH 3.7.1p2 on Windows 2003 Server Date: Wed, 15 Jun 2005 15:14:01 +0100 Message-ID: <34D62E65D54FDF49B7B4DDDC87BF2F2A482A84@hera.internal.metron.co.uk> From: "Des Atkinson" To: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id j5FEBaQb012303 I have been trying to connect to OpenSSH on my Windows 2003 Server system using public key authentication. I have tried using both sftp and ssh. In both cases the verbose output shows that the authentication succeeded okay, but the session itself just seems to die with an "Exit status 255" message (followed by "Connection closed" for sftp). Attached below are the following: 1. The verbose output from ssh on the client 2. The verbose output from sftp on the client 3. The contents of ssh_config on the client 4. The contents of sshd_config on the server Is there some additional configuration I need to attempt on my server to make this all work? I am running the CYGWIN sshd service under the Local System account on the server. The user I am trying to connect with is a Domain Admin. The server is acting as the sole domain controller for the small test domain in which I have been trying this. If anybody has any ideas then I can easily try things out with this configuration. On the server I also tried setting /etc/sshd_config to say "LogLevel VERBOSE". However although I stopped and restarted the service, the file /var/log/sshd.log remained stubbornly empty. In the Windows Event Log on the server there are no relevant messages in the Application, System or Security logs. Many thanks, Des Atkinson Metron Technology Ltd. Taunton, UK. SSH output ========== D:\cygwin\bin>ssh -v -v -v t21win2003e OpenSSH_3.7.1p2, SSH protocols 1.5/2.0, OpenSSL 0.9.7b 10 Apr 2003 debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to t21win2003e [10.0.0.1] port 122. debug1: Connection established. debug1: identity file /home/des/.ssh/identity type 0 debug3: Not a RSA1 key file /home/des/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_rsa type 1 debug3: Not a RSA1 key file /home/des/.ssh/id_dsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_3.7.1p2 debug1: match: OpenSSH_3.7.1p2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.7.1p2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,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: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_init: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug2: mac_init: found hmac-md5 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 debug2: dh_gen_key: priv key bits set: 129/256 debug2: bits set: 1602/3191 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 2 debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug1: Host 't21win2003e' is known and matches the RSA host key. debug1: Found key in /home/des/.ssh/known_hosts:2 debug2: bits set: 1585/3191 debug1: ssh_rsa_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: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/des/.ssh/id_rsa (0x100fa8b0) debug2: key: /home/des/.ssh/id_dsa (0x100fa8c8) debug1: Authentications that can continue: publickey,keyboard-interactive debug3: start over, passed a different list publickey,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: Offering public key: /home/des/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-rsa blen 149 debug2: input_userauth_pk_ok: fp d5:41:bf:85:44:27:ea:93:42:36:87:1c:a9:d4:e3:4d debug3: sign_and_send_pubkey debug1: read PEM private key done: type RSA debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: ssh_session2_setup: id 0 debug2: channel 0: request pty-req debug3: tty_make_modes: ospeed 38400 debug3: tty_make_modes: ispeed 38400 debug3: tty_make_modes: 1 3 debug3: tty_make_modes: 2 28 debug3: tty_make_modes: 3 8 debug3: tty_make_modes: 4 21 debug3: tty_make_modes: 5 4 debug3: tty_make_modes: 6 0 debug3: tty_make_modes: 7 0 debug3: tty_make_modes: 8 17 debug3: tty_make_modes: 9 19 debug3: tty_make_modes: 10 26 debug3: tty_make_modes: 12 18 debug3: tty_make_modes: 13 23 debug3: tty_make_modes: 14 22 debug3: tty_make_modes: 18 15 debug3: tty_make_modes: 30 0 debug3: tty_make_modes: 31 0 debug3: tty_make_modes: 32 0 debug3: tty_make_modes: 33 0 debug3: tty_make_modes: 34 0 debug3: tty_make_modes: 35 0 debug3: tty_make_modes: 36 1 debug3: tty_make_modes: 37 0 debug3: tty_make_modes: 38 1 debug3: tty_make_modes: 39 0 debug3: tty_make_modes: 40 0 debug3: tty_make_modes: 41 0 debug3: tty_make_modes: 50 1 debug3: tty_make_modes: 51 1 debug3: tty_make_modes: 53 1 debug3: tty_make_modes: 54 0 debug3: tty_make_modes: 55 0 debug3: tty_make_modes: 56 0 debug3: tty_make_modes: 57 0 debug3: tty_make_modes: 58 0 debug3: tty_make_modes: 59 1 debug3: tty_make_modes: 60 0 debug3: tty_make_modes: 61 0 debug3: tty_make_modes: 70 1 debug3: tty_make_modes: 71 0 debug3: tty_make_modes: 72 1 debug3: tty_make_modes: 73 0 debug3: tty_make_modes: 74 0 debug3: tty_make_modes: 75 0 debug3: tty_make_modes: 90 1 debug3: tty_make_modes: 91 1 debug3: tty_make_modes: 92 0 debug3: tty_make_modes: 93 0 debug2: channel 0: request shell debug2: fd 3 setting TCP_NODELAYD:\cygwin\bin>sftp -v -v -v t21win2003e Connecting to t21win2003e... OpenSSH_3.7.1p2, SSH protocols 1.5/2.0, OpenSSL 0.9.7b 10 Apr 2003 debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to t21win2003e [10.0.0.1] port 122. debug1: Connection established. debug3: Not a RSA1 key file /home/des/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_rsa type 1 debug3: Not a RSA1 key file /home/des/.ssh/id_dsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_3.7.1p2 debug1: match: OpenSSH_3.7.1p2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.7.1p2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,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: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_init: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug2: mac_init: found hmac-md5 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 debug2: dh_gen_key: priv key bits set: 125/256 debug2: bits set: 1619/3191 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 2 debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug1: Host 't21win2003e' is known and matches the RSA host key. debug1: Found key in /home/des/.ssh/known_hosts:2 debug2: bits set: 1569/3191 debug1: ssh_rsa_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: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/des/.ssh/id_rsa (0x100f9d38) debug2: key: /home/des/.ssh/id_dsa (0x100f9c80) debug1: Authentications that can continue: publickey,keyboard-interactive debug3: start over, passed a different list publickey,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: Offering public key: /home/des/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-rsa blen 149 debug2: input_userauth_pk_ok: fp d5:41:bf:85:44:27:ea:93:42:36:87:1c:a9:d4:e3:4d debug3: sign_and_send_pubkey debug1: read PEM private key done: type RSA debug1: Authentication succeeded (publickey). debug2: fd 4 setting O_NONBLOCK debug2: fd 5 setting O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: ssh_session2_setup: id 0 debug1: Sending subsystem: sftp debug2: channel 0: request subsystem debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel 0: rcvd adjust 131072 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 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 debug2: channel 0: close_read debug2: channel 0: input open -> closed 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) debug3: channel 0: close_fds r -1 w -1 e 6 debug2: fd 0 is not O_NONBLOCK debug2: fd 1 is not O_NONBLOCK debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 0.2 seconds debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0 debug1: Exit status 255 Connection closed debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel 0: rcvd adjust 131072 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 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug2: channel 0: rcvd close debug2: channel 0: close_read debug2: channel 0: input open -> closed 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) debug3: channel 0: close_fds r -1 w -1 e 6 Connection to t21win2003e closed. debug1: Transferred: stdin 0, stdout 0, stderr 35 bytes in 12.4 seconds debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 2.8 debug1: Exit status 255 sftp output =========== D:\cygwin\bin>sftp -v -v -v t21win2003e Connecting to t21win2003e... OpenSSH_3.7.1p2, SSH protocols 1.5/2.0, OpenSSL 0.9.7b 10 Apr 2003 debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to t21win2003e [10.0.0.1] port 122. debug1: Connection established. debug3: Not a RSA1 key file /home/des/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_rsa type 1 debug3: Not a RSA1 key file /home/des/.ssh/id_dsa. debug2: key_type_from_name: unknown key type '-----BEGIN' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-----END' debug3: key_read: missing keytype debug1: identity file /home/des/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_3.7.1p2 debug1: match: OpenSSH_3.7.1p2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.7.1p2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,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: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc AT lysat or.liu.se,aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 AT openssh DOT com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_init: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug2: mac_init: found hmac-md5 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 debug2: dh_gen_key: priv key bits set: 125/256 debug2: bits set: 1619/3191 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 2 debug3: check_host_in_hostfile: filename /home/des/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug1: Host 't21win2003e' is known and matches the RSA host key. debug1: Found key in /home/des/.ssh/known_hosts:2 debug2: bits set: 1569/3191 debug1: ssh_rsa_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: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/des/.ssh/id_rsa (0x100f9d38) debug2: key: /home/des/.ssh/id_dsa (0x100f9c80) debug1: Authentications that can continue: publickey,keyboard-interactive debug3: start over, passed a different list publickey,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: Offering public key: /home/des/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-rsa blen 149 debug2: input_userauth_pk_ok: fp d5:41:bf:85:44:27:ea:93:42:36:87:1c:a9:d4:e3:4d debug3: sign_and_send_pubkey debug1: read PEM private key done: type RSA debug1: Authentication succeeded (publickey). debug2: fd 4 setting O_NONBLOCK debug2: fd 5 setting O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Entering interactive session. debug2: callback start debug2: ssh_session2_setup: id 0 debug1: Sending subsystem: sftp debug2: channel 0: request subsystem debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel 0: rcvd adjust 131072 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 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 debug2: channel 0: close_read debug2: channel 0: input open -> closed 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) debug3: channel 0: close_fds r -1 w -1 e 6 debug2: fd 0 is not O_NONBLOCK debug2: fd 1 is not O_NONBLOCK debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 0.2 seconds debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0 debug1: Exit status 255 Connection closed ssh_config on client machine ============================ D:\cygwin\etc>type ssh_config # This is the ssh client system-wide configuration file.  See # ssh_config(5) for more information.  This file provides defaults for # users, and the values can be changed in per-user configuration files # or on the command line. # Configuration data is parsed as follows: #  1. command line options #  2. user-specific file #  3. system-wide file # Any configuration value is only changed the first time it is set. # Thus, host-specific definitions should be at the beginning of the # configuration file, and defaults at the end. # Site-wide defaults for various options # Host * #   ForwardAgent no #   ForwardX11 no #   RhostsRSAAuthentication no #   RSAAuthentication yes #   PasswordAuthentication yes #   HostbasedAuthentication no #   BatchMode no #   CheckHostIP yes #   AddressFamily any #   ConnectTimeout 0 #   StrictHostKeyChecking ask #   IdentityFile ~/.ssh/identity #   IdentityFile ~/.ssh/id_dsa #   IdentityFile ~/.ssh/id_rsa    Port 122 #   Protocol 2,1 #   Cipher 3des #   Ciphers aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc #   EscapeChar ~ sshd_config on target server ============================ $ cat /etc/sshd_config # This is the sshd server system-wide configuration file.  See # sshd_config(5) for more information. # This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin # The strategy used for options in the default sshd_config shipped with # OpenSSH is to specify options with their default value where # possible, but leave them commented.  Uncommented options change a # default value. Port 122 Protocol 2 #ListenAddress 0.0.0.0 #ListenAddress :: # HostKey for protocol version 1 #HostKey /etc/ssh_host_key # HostKeys for protocol version 2 #HostKey /etc/ssh_host_rsa_key #HostKey /etc/ssh_host_dsa_key # Lifetime and size of ephemeral version 1 server key #KeyRegenerationInterval 1h #ServerKeyBits 768 # Logging #obsoletes QuietMode and FascistLogging #SyslogFacility AUTH #LogLevel INFO LogLevel VERBOSE # Authentication: #LoginGraceTime 2m #PermitRootLogin yes # The following setting overrides permission checks on host key files # and directories. For security reasons set this to "yes" when running # NT/W2K, NTFS and CYGWIN=ntsec. StrictModes no #RSAAuthentication yes #PubkeyAuthentication yes #AuthorizedKeysFile     .ssh/authorized_keys # For this to work you will also need host keys in /etc/ssh_known_hosts #RhostsRSAAuthentication no # similar for protocol version 2 #HostbasedAuthentication no # Change to yes if you don't trust ~/.ssh/known_hosts for # RhostsRSAAuthentication and HostbasedAuthentication #IgnoreUserKnownHosts no # Don't read the user's ~/.rhosts and ~/.shosts files #IgnoreRhosts yes # To disable tunneled clear text passwords, change to no here! PasswordAuthentication no #PermitEmptyPasswords no # Change to no to disable s/key passwords #ChallengeResponseAuthentication yes #AllowTcpForwarding yes #GatewayPorts no #X11Forwarding no #X11DisplayOffset 10 #X11UseLocalhost yes #PrintMotd yes #PrintLastLog yes #KeepAlive yes #UseLogin no UsePrivilegeSeparation no #PermitUserEnvironment no #Compression yes #ClientAliveInterval 0 #ClientAliveCountMax 3 #UseDNS yes #PidFile /var/run/sshd.pid #MaxStartups 10 # no default banner path #Banner /some/path # override default of no subsystems Subsystem      sftp    /usr/sbin/sftp-server -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/