n.js

var net = require('net');
var server = net.createServer({ allowHalfOpen: true }, function(sock) {
  sock.on('data', function(c) {
    console.error('SERVER data %j', c.toString());
  });
  sock.on('end', function() {
    console.error('SERVER message received, responding');
    sock.write('hello1');
    sock.write('hello2');
    sock.write('hello3');
    sock.end('THUNDERMUSCLE!');
  });
});
server.listen(1337);

var sock = net.connect(1337);
sock.on('data', function(c) {
  console.error('CLIENT data %j', c.toString());
});
sock.on('end', function() {
  console.error('CLIENT end');
});
sock.write('hello1');
sock.write('hello2');
sock.write('hello3');
sock.end('THUNDERMUSCLE!');

'THUNDERMUSCLE!'