Open an SSH Tunnel

See more Socket/SSL/TLS Examples

Demonstrates Socket.SshOpenTunnel, which connects to an SSH server and initializes an SSH tunneling session, then authenticates it.

load ./chilkat.dll

set success 0

set socket [new_CkSocket]

#  Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
#  not required.
set success [CkSocket_SshOpenTunnel $socket "ssh.example.com" 22]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    exit
}

#  After the tunnel is open, authenticate before opening forwarded channels.
#  The SSH password should come from a secure source rather than being hard-coded.
set sshPassword "mySshPassword"
set success [CkSocket_SshAuthenticatePw $socket "sshUser" $sshPassword]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    exit
}

puts "SSH tunnel established and authenticated."

delete_CkSocket $socket