Node. js implements port forwarding _ node. js

This article mainly introduces node in detail. key code for js port forwarding. If you are interested, refer to this article to share with you node. js port forwarding implementation code for your reference. The specific content is as follows:

#!/sbin/node var net = require('net'); function proxyPort(srcport,destServer,destport){  var server = net.createServer(function(c) { //'connection' listener     c.on('end', function() {        console.log('src disconnected');    });     var client = net.connect({port: destport,host:destServer},function() { //'connect' listener         console.log('ok....');         c.on('data', function(data) {             console.log(data.length);           client.write(data);         });    });     client.on('error', function(err) {     console.log("dest=" + err);     c.destroy();    });     c.on('error', function(err) {     console.log("src" + err);     client.destroy();    });     client.on('data', function(data) {     c.write(data);    });     client.on('end', function() {     console.log('dest disconnected ');    });   });  server.listen(srcport, function() { //'listening' listener   console.log('server bound' + srcport);  });} var params = process.argv;if(params.length != 5){ console.log("node port.js srcport destserver destport ");  return;} proxyPort(params[2],params[3],params[4]); console.log(process.argv);

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