* About to connect() to xxx.xxx.xxx.xxx port 22 (#0)
*   Trying xxx.xxx.xxx.xxx... * connected
* Connected to xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx) port 22 (#0)
* SFTP 0x60420 state change from SSH_STOP to SSH_S_STARTUP
* SFTP 0x60420 state change from SSH_S_STARTUP to SSH_HOSTKEY
* SFTP 0x60420 state change from SSH_HOSTKEY to SSH_AUTHLIST
* SSH authentication methods available: gssapi-keyex,gssapi-with-mic,publickey,password,keyboard-interactive
* SFTP 0x60420 state change from SSH_AUTHLIST to SSH_AUTH_PKEY_INIT
* Using ssh private key file /home/huangyal/.ssh/huangyalOAM_rsa
* SFTP 0x60420 state change from SSH_AUTH_PKEY_INIT to SSH_AUTH_PKEY
* SSH public key authentication failed: Unable to open public key file
* SFTP 0x60420 state change from SSH_AUTH_PKEY to SSH_AUTH_PASS_INIT
* SFTP 0x60420 state change from SSH_AUTH_PASS_INIT to SSH_AUTH_HOST_INIT
* SFTP 0x60420 state change from SSH_AUTH_HOST_INIT to SSH_AUTH_KEY_INIT
* SFTP 0x60420 state change from SSH_AUTH_KEY_INIT to SSH_AUTH_DONE
* Authentication failure
* SFTP 0x60420 state change from SSH_AUTH_DONE to SSH_SESSION_FREE
* SFTP 0x60420 state change from SSH_SESSION_FREE to SSH_STOP
* SSH DISCONNECT starts now
* SSH DISCONNECT is done
* Closing connection #0
* Login denied