telnet-client

'use strict'; import { Telnet } from 'telnet-client'; async function runTelnetClient() { const connection = new Telnet(); // These parameters are just examples. Adjust them for your specific Telnet server. const params = { host: '127.0.0.1', // Replace with your Telnet server's host port: 23, // Replace with your Telnet server's port (default Telnet is 23) shellPrompt: '/ # ', // Important: Set this to your server's prompt, or negotiationMandatory: false timeout: 3000, // Connection timeout in milliseconds negotiationMandatory: true, // Set to false if you don't need prompt detection and want to send commands directly // You might also need to configure 'irs' (input response string) and 'ors' (output response string) // depending on how your Telnet server responds and expects input. }; try { console.log(`Attempting to connect to ${params.host}:${params.port}...`); await connection.connect(params); console.log('Connected to Telnet server.'); // Example: Execute a command like 'uptime' const command = 'uptime'; console.log(`Executing command: "${command}"`); const response = await connection.exec(command); console.log(`Command response: ${response.trim()}`); // Example: Send multiple commands // await connection.exec('ls -l'); // console.log('Executed ls -l'); connection.end(); console.log('Connection closed.'); } catch (error: any) { console.error('Telnet connection or command execution error:', error.message); // Ensure the connection is closed even on error if (connection.socket && !connection.socket.destroyed) { connection.end(); } } } runTelnetClient();