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.

import 'package:chilkat/chilkat.dart';

void main() {
  final socket = CkSocket();

  // Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
  // not required.
  try {
    socket.sshOpenTunnel('ssh.example.com', 22);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // After the tunnel is open, authenticate before opening forwarded channels.
  // The SSH password should come from a secure source rather than being hard-coded.
  final sshPassword = 'mySshPassword';
  try {
    socket.sshAuthenticatePw('sshUser', sshPassword);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('SSH tunnel established and authenticated.');
}