JavaScript

Close an SSH Tunnel

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

Background. Closing the tunnel does not affect unrelated SSH objects or connections.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var socket = new CkSocket();

//  Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
//  not required.
success = socket.SshOpenTunnel("ssh.example.com",22);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

//  Authenticate the SSH session before opening forwarded channels.
//  The SSH password should come from a secure source rather than being hard-coded.
var sshPassword = "mySshPassword";
success = socket.SshAuthenticatePw("sshUser",sshPassword);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

//  Close the SSH tunnel and terminate its forwarded channels.  This does not affect unrelated SSH
//  objects or connections.
success = socket.SshCloseTunnel();
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

console.log("SSH tunnel closed.");