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/* | |
In the node.js intro tutorial (http://nodejs.org/), they show a basic tcp | |
server, but for some reason omit a client connecting to it. I added an | |
example at the bottom. | |
Save the following server in example.js: | |
*/ | |
var net = require('net'); | |
var server = net.createServer(function(socket) { | |
socket.write('Echo server\r\n'); | |
socket.pipe(socket); | |
}); | |
server.listen(1337, '127.0.0.1'); | |
/* | |
And connect with a tcp client from the command line using netcat, the *nix | |
utility for reading and writing across tcp/udp network connections. I've only | |
used it for debugging myself. | |
$ netcat 127.0.0.1 1337 | |
You should see: | |
> Echo server | |
*/ | |
/* Or use this example tcp client written in node.js. (Originated with | |
example code from | |
http://www.hacksparrow.com/tcp-socket-programming-in-node-js.html.) */ | |
var net = require('net'); | |
var client = new net.Socket(); | |
client.connect(1337, '127.0.0.1', function() { | |
console.log('Connected'); | |
client.write('Hello, server! Love, Client.'); | |
}); | |
client.on('data', function(data) { | |
console.log('Received: ' + data); | |
client.destroy(); // kill client after server's response | |
}); | |
client.on('close', function() { | |
console.log('Connection closed'); | |
}); |
The output:
Connected Received: Echo server Hello, server! Love, Client. Connection closed
all is fine
this gist was really helpful for me, thank you dude
Hi guys and gals,
I'm trying to create a simulator using Javascript for the front end which I can do, but I'm having a hard time with Node.js for the backend. When I click on, say, a Cisco router icon, I want the a physical connection to occur between my PC and the physcial router that is connected via ethernet. It is a laboratory router (no internet connection). I was thinking that I should download the NPM package telnet-client and require it in the node.js file. I don't know what to do from there. I assume I have to require net as well. Will someone help me. Please... Pretty please :)
Please use arrow functions!
hello, how can you prevent DDOS attacks on this code?
how to set tcp headers on request and receive in the server
how to set tcp headers on request and receive in the server
I don't think you can set headers with TCP. HTTP maybe what you are looking for
'Received: ' + data
I also have a same issue.......
require("net") is not working in 16.13.1
when i move to 18.x now it says digital envelope routines unsupported
.......
you try to connect to another pc port? if yes, make sure to allow inbound firewall
this gist was really helpful for me, thank you dude
same! thank you!
I have multiple simultaneous connections. how can I write to a particular client if the remotePort and remoteAddress is stored to the DB. the new Socket() command does not work in my case because it creates a new instance of this.
Hi, is it possible to use this to connect to a network share (smb1)?