I have cygwin with ssh using public key installed on a windows machine, and I've been able to login from another machine fine until recently. If I connect via ssh, the client is authenticated, but then the remote host closes the connection. It does this if I run ssh localhost on the ssh server or from the remote client.
The sshd daemon is running fine. I've renamed /etc/hosts.allow and /etc/hosts.deny in case these were causing a problem. I've checked /etc/passwd contains a valid shell for the users I'm connecting as, so I have :/bin/bash at the end of each user line. The authorized_keys file does not contain any commands/restrictions as to no-pty etc. I've rerun mkpasswd/mkgroup to make sure the passwd/group file are ok. The sshd log shows authentication is fine. I've included log output from authentication ok line. Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: monitor_child_preauth: admin has been authenticated by privileged process Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: Entering interactive session for SS H2. Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: server_init_dispatch_20 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: server_input_channel_open: ctype se ssion rchan 0 win 1048576 max 16384 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: input_session_request Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: channel 0: new [server-session] Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_new: init Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_new: session 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_open: channel 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_open: session 0: link with channel 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: server_input_channel_open: confirm session Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: server_input_channel_req: channel 0 request pty-req reply 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_by_channel: session 0 chann el 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_input_channel_req: session 0 req pty-req Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: Allocating pty. Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_pty_req: session 0 alloc /d ev/tty1 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: server_input_channel_req: channel 0 request shell reply 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_by_channel: session 0 chann el 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_input_channel_req: session 0 req shell Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: Received SIGCHLD. Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_by_pid: pid 6044 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_exit_message: session 0 cha nnel 0 pid 6044 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_exit_message: release chann el 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_pty_cleanup: session 0 rele ase /dev/tty1 Nov 28 13:50:41 ORAC sshd: PID 5712: syslogin_perform_logout: logout() returned an error Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_by_channel: session 0 chann el 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_close_by_channel: channel 0 child 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: session_close: session 0 pid 0 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: channel 0: free: server-session, nc hannels 1 Nov 28 13:50:41 ORAC sshd: PID 5712: Connection closed by 192.168.1.6 Nov 28 13:50:41 ORAC sshd: PID 5712: debug1: do_cleanup Nov 28 13:50:41 ORAC sshd: PID 5712: Closing connection to 192.168.1.6 Can anyone suggest something I've screwed up in the setup or suggest some debug I could try ? -- 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/
