mock-ssh-server

import paramiko from mockssh import MockSSH import socket # For example error handling # 1. Define users for the mock SSH server users = { "testuser": "testpassword", "admin": "securepass" } # 2. Generate a host key for the server (essential for real SSH clients) # In a real application, you might load a persistent key. server_host_key = paramiko.RSAKey.generate(2048) print("Starting Mock SSH server...") # 3. Start the mock SSH server in a context manager with MockSSH(users, host='127.0.0.1', rsa_key=server_host_key) as s: server_port = s.port print(f"Mock SSH server running on 127.0.0.1:{server_port}") # 4. Demonstrate a client connection using paramiko print("\nAttempting to connect with Paramiko client...") client = paramiko.SSHClient() # Automatically add new host keys (for testing, not recommended for production) client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) try: client.connect( hostname='127.0.0.1', port=server_port, username='testuser', password='testpassword' ) print("Client connected successfully to mock SSH server.") # Execute a simple command stdin, stdout, stderr = client.exec_command('echo "Hello from mock SSH client!"') output = stdout.read().decode().strip() error = stderr.read().decode().strip() print(f"Command output: '{output}'") if error: print(f"Command error: '{error}'") except paramiko.AuthenticationException: print("Authentication failed for 'testuser'! Check username/password.") except paramiko.SSHException as e: print(f"SSH connection failed: {e}") except socket.error as e: print(f"Socket error: {e}. Is the server running and accessible?") except Exception as e: print(f"An unexpected error occurred: {e}") finally: if client.get_transport() and client.get_transport().is_active(): client.close() print("Client connection closed.") print("Mock SSH server context manager exited. Server is stopped.")