About using this module to test the connection process #103
Description
I am currently using this module to create an application that connects to the dstHost shown below.
flowchart LR
A["localHost"] -->|Tunneling| B["host"]
B -->|Tunneling| C["dstHost"]
I wanted to write test code to simulate communication at the dstHost, so I wrote the following code:
const { createTunnel } = require('tunnel-ssh');
const { Server } = require('ssh2');
const { readFileSync } = require('fs');
const net = require("net");
require("dotenv").config();
const tunnelOptions = {
autoClose:false
};
const serverOptions = {
host: process.env.SRC_HOST, port: process.env.SRC_PORT
};
const sshOptions = {
host: process.env.HOST, port: process.env.PORT,
username: process.env.UNAME, password: process.env.PASSWORD
}
const forwardOptions = {
srcAddr: process.env.HOST, srcPort: process.env.PORT,
dstAddr: process.env.TO_HOST, dstPort: process.env.TO_PORT
}
const f = async () => {
const proxy = net.createServer((client) => {
const serverConnection = net.createConnection({host: forwardOptions.dstAddr, port: forwardOptions.dstPort});
client.pipe(serverConnection);
});
const server = new Server({ hostKeys: [readFileSync('./id_rsa')] }, (client) => {
console.log('Client connected!');
client.on('authentication', (ctx) => {
// authentication code
}).on('ready', () => {
// authenticated code
}).on('close', () => {
// closing code
});
});
proxy.listen({host: sshOptions.host, port: sshOptions.port});
server.listen({host: forwardOptions.dstAddr, port: forwardOptions.dstPort});
const result = await createTunnel(tunnelOptions, serverOptions, sshOptions, forwardOptions);
console.log("Finished!");
result[0].close();
}
f();However, when I execute the above code, the log "Finished" is not displayed and the error "Error: Timed out while waiting for handshake" occurs.
How can I emulate SSH communication without causing errors?
tunnel-ssh：4.0.5
node: v19.6.0
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