Hi

I am very new to unix . please help me

I am trying to connect one remote AIX box from my webapplication by using ssh stuff to read the files and My WAS applicaiton server is resided in another AIX box.

This time I am facing the connection issue

whenever my application is trying to connect the remote aix box the
following exception is gettting even these two boxes are up and running fine and while pinging its working fine.

The host tigger is currently unknown to the system
1309282e SystemOut O
The host key (ssh-dss) fingerprint is:01:f6:9d:fb:92:e2:5b:db:16:c6:4f:d6:cc:8b:bf:e1
1309282e SystemOut O Do you want to allow this host key? [Yes|No|Always]: java.lang.NullPointerException

And in another issue I am trying to read some files to display it on the web its connecting the box fine but no data getting back the following
this could be ftp prob i think
messages are getting and finally

com.sshtools.j2ssh.subsystem.SubsystemMessageStore Received SSH_FXP_DATA subsystem message
com.sshtools.j2ssh.subsystem.SubsystemClient Sending SSH_FXP_READ subsystem message
com.sshtools.j2ssh.transport.TransportProtocolCommon Sending SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.transport.TransportProtocolCommon Sending SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.sftp.SftpMessageStore Message store has 0 messages
com.sshtools.j2ssh.sftp.SftpMessageStore Message store has 0 messages
com.sshtools.j2ssh.transport.TransportProtocolCommon Received SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.transport.Service Routing SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.subsystem.SubsystemMessageStore Received SSH_FXP_STATUS subsystem message
com.sshtools.j2ssh.subsystem.SubsystemClient Sending SSH_FXP_CLOSE subsystem message
com.sshtools.j2ssh.transport.TransportProtocolCommon Sending SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.transport.TransportProtocolCommon Sending SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.sftp.SftpSubsystemClient Waiting for response
com.sshtools.j2ssh.transport.TransportProtocolCommon Received SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.sftp.SftpMessageStore Message store has 0 messages
com.sshtools.j2ssh.sftp.SftpMessageStore Message store has 0 messages
com.sshtools.j2ssh.transport.Service Routing SSH_MSG_CHANNEL_DATA
com.sshtools.j2ssh.subsystem.SubsystemMessageStore Received SSH_FXP_STATUS subsystem message

com.sshtools.j2ssh.sftp.SftpSubsystemClient Received response
SRVE0026E: [Servlet Error]-[NonSecureServlet]: java.lang.NullPointerException


******* this is very urgent.

Please help me in this regard what is the problem. your suggestions greatful and appreciable.