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.

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkSocket 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) {
        System.out.println(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.
    String sshPassword = "mySshPassword";
    success = socket.SshAuthenticatePw("sshUser",sshPassword);
    if (success == false) {
        System.out.println(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) {
        System.out.println(socket.lastErrorText());
        return;
        }

    System.out.println("SSH tunnel closed.");
  }
}