Close an SSH Tunnel

See more Socket/SSL/TLS Examples

Demonstrates Socket.SshCloseTunnel, which closes the SSH tunnel opened by SshOpenTunnel and terminates its forwarded channels.

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
}

#  Authenticate the SSH session 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
}

#  Close the SSH tunnel and terminate its forwarded channels.  This does not affect unrelated SSH
#  objects or connections.
set success [CkSocket_SshCloseTunnel $socket]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    exit
}

puts "SSH tunnel closed."

delete_CkSocket $socket