Я установил CYGWIN для SFTP несколько недель назад на нескольких серверах Win 2003 R2 x64, и изначально все они работали без проблем. Однако на этой неделе возникает проблема, когда пользователи не могут использовать SFTP для 2 серверов. При подключении ошибка «Соединение закрыто» сразу после аутентификации. Для первого сервера мы переустановили и перенастроили CYGWIN, и он снова начал работать. Однако сегодня другой сервер снова попадает в ту же ошибку, поэтому я думаю выяснить, что не так, чтобы другие серверы не столкнулись с той же проблемой. Я сделал SFTP -v, и результат выглядит следующим образом:
OpenSSH_6.7p1, OpenSSL 1.0.1k 8 Jan 2015
debug1: Reading configuration data /etc/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to 192.168.1.1 [192.168.1.1] port 22.
--truncated due to characters limitation--
debug1: Next authentication method: password
MYSERVER+sftpuser5@192.168.1.1's password:
debug2: we sent a password packet, wait for reply
debug1: Authentication succeeded (password).
Authenticated to 192.168.1.1 ([192.168.1.1]:22).
debug2: fd 4 setting O_NONBLOCK
debug2: fd 5 setting O_NONBLOCK
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug2: callback start
debug2: fd 3 setting TCP_NODELAY
debug2: client_session2_setup: id 0
debug1: Sending subsystem: sftp
debug2: channel 0: request subsystem confirm 1
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel 0: rcvd adjust 2097152
debug2: channel_input_status_confirm: type 99 id 0
debug2: subsystem request accepted on channel 0
(Я сравниваю сообщения отладки с теми серверами, на которых SFTP все еще работает, отсюда начинается другое ..)
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.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
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
Transferred: sent 2584, received 2544 bytes, in 0.2 seconds
Bytes per second: sent 11233.7, received 11059.8
debug1: Exit status 1
Connection closed
И ниже sshd_config
--Удалено из-за нехватки символов -
погуглил и увидел упомянутую проблему / etc / passwd, но я снова попробовал mkpasswd, и он не работает.
Любая помощь будет принята с благодарностью.
Отредактировано 23.07.2015
Вот syslog-ng, но я не могу найти здесь полезную информацию.
Jul 23 10:07:39 MYSERVER syslog-ng[1044]: syslog-ng starting up; version='3.2.5'
Jul 23 10:07:40 MYSERVER syslog-ng: PID 1668: `syslog-ng' service started
Jul 23 10:07:56 MYSERVER sshd: PID 4364: Server listening on 0.0.0.0 port 22.
Jul 23 10:07:57 MYSERVER sshd: PID 4288: `sshd' service started
Jul 23 10:08:07 MYSERVER sshd: PID 4140: Accepted password for MYSERVER+sftpuser5 from 192.168.1.185 port 5432 ssh2
Jul 23 10:08:08 MYSERVER sshd: PID 4140: Received disconnect from 192.168.1.185: 11: disconnected by user
Jul 23 10:08:08 MYSERVER sshd: PID 4140: Disconnected from 192.168.1.185
Jul 23 10:08:15 MYSERVER syslog-ng[1044]: Termination requested via signal, terminating;
Jul 23 10:08:15 MYSERVER syslog-ng[1044]: syslog-ng shutting down; version='3.2.5'
Он сказал, что получил отключение от клиента, однако на стороне клиента соединение закрылось сразу после аутентификации.
Спасибо.
Снова отредактируйте, добавил уровень лога DEBUG3.
Jul 23 16:35:16 MYSERVER syslog-ng[1776]: syslog-ng starting up; version='3.2.5'
Jul 23 16:35:17 MYSERVER syslog-ng: PID 5004: `syslog-ng' service started
Jul 23 16:35:23 MYSERVER sshd: PID 4936: debug2: fd 3 setting O_NONBLOCK
Jul 23 16:35:23 MYSERVER sshd: PID 4936: debug1: Bind to port 22 on 0.0.0.0.
Jul 23 16:35:23 MYSERVER sshd: PID 4936: Server listening on 0.0.0.0 port 22.
Jul 23 16:35:24 MYSERVER sshd: PID 840: `sshd' service started
Jul 23 16:35:29 MYSERVER sshd: PID 4936: debug1: fd 4 clearing O_NONBLOCK
Jul 23 16:35:29 MYSERVER sshd: PID 4936: debug1: Forked child 1708.
Jul 23 16:35:29 MYSERVER sshd: PID 4936: debug3: send_rexec_state: entering fd = 7 config len 271
Jul 23 16:35:30 MYSERVER sshd: PID 4936: debug3: ssh_msg_send: type 0
Jul 23 16:35:30 MYSERVER sshd: PID 4936: debug3: send_rexec_state: done
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: rexec start in 4 out 4 newsock 4 pipe 6 sock 7
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: inetd sockets after dupping: 3, 3
Jul 23 16:35:30 MYSERVER sshd: PID 1708: Connection from 192.168.1.185 port 8551 on 192.168.1.81 port 22
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: Client protocol version 2.0; client software version OpenSSH_6.7
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: match: OpenSSH_6.7 pat OpenSSH* compat 0x04000000
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: Enabling compatibility mode for protocol 2.0
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: Local version string SSH-2.0-OpenSSH_6.9
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: fd 3 setting O_NONBLOCK
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: Network child is on pid 5048
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: preauth child monitor started
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: list_hostkey_types: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: SSH2_MSG_KEXINIT sent [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: SSH2_MSG_KEXINIT received [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: none,zlib@openssh.com [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: none,zlib@openssh.com [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: first_kex_follows 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: reserved 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-ed25519,ssh-rsa,ssh-dss [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: first_kex_follows 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: kex_parse_kexinit: reserved 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: kex: client->server aes128-ctr umac-64-etm@openssh.com none [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: kex: server->client aes128-ctr umac-64-etm@openssh.com none [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_key_sign entering [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 6 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive_expect entering: type 7 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: monitor_read: checking request 6
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_answer_sign
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_answer_sign: hostkey proof signature 0x60005a630(100)
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 7
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: monitor_read: 6 used once, disabling now
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: set_newkeys: mode 1 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: SSH2_MSG_NEWKEYS sent [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: expecting SSH2_MSG_NEWKEYS [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: set_newkeys: mode 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: SSH2_MSG_NEWKEYS received [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: KEX done [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: userauth-request for user MYSERVER+sftpuser5 service ssh-connection method none [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: attempt 0 failures 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_getpwnamallow entering [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 8 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive_expect entering: type 9 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: monitor_read: checking request 8
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_answer_pwnamallow
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: parse_server_config: config reprocess config len 271
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 9
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: monitor_read: 8 used once, disabling now
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: input_userauth_request: setting up authctxt for MYSERVER+sftpuser5 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_inform_authserv entering [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 4 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: input_userauth_request: try method none [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: userauth_finish: failure partial=0 next methods="publickey,password,keyboard-interactive" [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: monitor_read: checking request 4
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: mm_answer_authserv: service=ssh-connection, style=
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: monitor_read: 4 used once, disabling now
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: userauth-request for user MYSERVER+sftpuser5 service ssh-connection method keyboard-interactive [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: attempt 1 failures 0 [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: input_userauth_request: try method keyboard-interactive [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: keyboard-interactive devs [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: auth2_challenge: user=MYSERVER+sftpuser5 devs= [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug1: kbdint_alloc: devices '' [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug2: auth2_challenge_start: devices [preauth]
Jul 23 16:35:30 MYSERVER sshd: PID 1708: debug3: userauth_finish: failure partial=0 next methods="publickey,password,keyboard-interactive" [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: userauth-request for user MYSERVER+sftpuser5 service ssh-connection method password [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: attempt 2 failures 1 [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: input_userauth_request: try method password [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_auth_password entering [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 12 [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_receive_expect entering: type 13 [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: monitor_read: checking request 12
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_answer_authpassword: sending result 1
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 13
Jul 23 16:35:33 MYSERVER sshd: PID 1708: Accepted password for MYSERVER+sftpuser5 from 192.168.1.185 port 8551 ssh2
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: monitor_child_preauth: MYSERVER+sftpuser5 has been authenticated by privileged process
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_get_keystate: Waiting for new keys
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_receive_expect entering: type 26
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_receive entering
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_get_keystate: GOT new keys
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_auth_password: user authenticated [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_request_send entering: type 26 [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_send_keystate: Finished sending state [preauth]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: monitor_read_log: child log fd closed
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_share_sync: Share sync
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: mm_share_sync: Share sync end
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: monitor_apply_keystate: packet_set_state
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: set_newkeys: mode 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: set_newkeys: mode 1
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: ssh_packet_set_postauth: called
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: ssh_packet_set_state: done
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: notify_hostkeys: key 0: ssh-rsa SHA256:h3LXugxWx25fkGJza4crq2RycpAyar+rXw5Az/24AEM
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: notify_hostkeys: key 1: ssh-dss SHA256:O2azzz4M9NSFNkd4I4xVxRzn+v0zt8p7SWa1e/BWCm0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: notify_hostkeys: key 2: ecdsa-sha2-nistp256 SHA256:6N/B4zyClH7siICVp7IbkNeDFuOdZT/GwAEpnP4yfso
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: notify_hostkeys: key 3: ssh-ed25519 SHA256:pASE9g1ir6BOsEqAtX2Iu9JPudkI1Vj+/ZZ17zttoL0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: notify_hostkeys: sent 4 hostkeys
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: Entering interactive session for SSH2.
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 4 setting O_NONBLOCK
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 5 setting O_NONBLOCK
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: server_init_dispatch_20
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: server_input_channel_open: ctype session rchan 0 win 2097152 max 32768
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: input_session_request
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: channel 0: new [server-session]
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: session_new: allocate (allocated 0 max 10)
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: session_unused: session id 0 unused
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_new: session 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_open: channel 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_open: session 0: link with channel 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: server_input_channel_open: confirm session
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: server_input_global_request: rtype no-more-sessions@openssh.com want_reply 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: server_input_channel_req: channel 0 request subsystem reply 1
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_by_channel: session 0 channel 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_input_channel_req: session 0 req subsystem
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: subsystem request for sftp by user MYSERVER+sftpuser5
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: subsystem: exec() /usr/sbin/sftp-server
Jul 23 16:35:33 MYSERVER sshd: PID 1708: Starting session: subsystem 'sftp' for MYSERVER+sftpuser5 from 192.168.1.185 port 8551
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 3 setting TCP_NODELAY
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: ssh_packet_set_tos: set IP_TOS 0x08
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 8 setting O_NONBLOCK
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 7 setting O_NONBLOCK
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: fd 10 setting O_NONBLOCK
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug1: permanently_set_uid: 197617/197121
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: ALLUSERSPROFILE=C:\\Documents and Settings\\All Users
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: COMPUTERNAME=MYSERVER
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: COMSPEC=C:\\WINDOWS\\system32\\cmd.exe
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: OS=Windows_NT
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: PATH=/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: PROGRAMFILES=C:\\Program Files
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: SYSTEMDRIVE=C:
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: SYSTEMROOT=C:\\WINDOWS
Jul 23 16:35:33 MYSERVER sshd: PID 3328: debug3: Copy environment: WINDIR=C:\\WINDOWS
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: Received SIGCHLD.
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_by_pid: pid 3328
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_exit_message: session 0 channel 0 pid 3328
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: request exit-status confirm 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug1: session_exit_message: release channel 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: write failed
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: close_write
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: send eow
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: output open -> closed
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: read 35 from efd 10
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug3: channel 0: discard efd
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: notify_done: reading
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: read<=0 rfd 8 len 0
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: read failed
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: close_read
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: input open -> drain
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: read 0 from efd 10
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: closing read-efd 10
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: ibuf empty
Jul 23 16:35:33 MYSERVER sshd: PID 1708: debug2: channel 0: send eof
Jul 23 16:35:34 MYSERVER sshd: PID 1708: debug2: channel 0: input drain -> closed
Jul 23 16:35:34 MYSERVER sshd: PID 1708: debug2: channel 0: send close
Jul 23 16:35:34 MYSERVER sshd: PID 1708: debug3: channel 0: will not send data after close
Jul 23 16:35:34 MYSERVER sshd: PID 1708: debug2: channel 0: rcvd close
Jul 23 16:35:34 MYSERVER sshd: PID 1708: Received disconnect from 192.168.1.185: 11: disconnected by user
Jul 23 16:35:34 MYSERVER sshd: PID 1708: Disconnected from 192.168.1.185
Jul 23 16:35:34 MYSERVER sshd: PID 1708: debug1: do_cleanup
Jul 23 16:35:43 MYSERVER syslog-ng[1776]: Termination requested via signal, terminating;
Jul 23 16:35:43 MYSERVER syslog-ng[1776]: syslog-ng shutting down; version='3.2.5'
Спасибо.
Похоже internal-sftp вместо полного исполняемого пути работает. Вероятно, проблема с выполнением внешнего двоичного файла при работе под cygwin.