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React Native

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.

Background. An SSH tunnel lets a socket reach a destination host through an SSH server using port forwarding. The sequence is: open the tunnel, authenticate, then open forwarded channels to destinations.

Chilkat React Native Downloads

React Native
import { Socket } from '@chilkat/react-native'

async function chilkatExample() {
  const socket = new Socket();

  // Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
  // not required.
  try {
    await socket.sshOpenTunnelAsync('ssh.example.com', 22);
  } catch {
    console.log(socket.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.
  const sshPassword = 'mySshPassword';
  try {
    await socket.sshAuthenticatePwAsync('sshUser', sshPassword);
  } catch {
    console.log(socket.lastErrorText);
    return;
  }

  console.log('SSH tunnel established and authenticated.');
}