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javascript - ERR_CONNECTION_REFUSED http:localhost:3000socket.iosocket.io.js - Stack Overflow

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Ciao, I'm implementing a webRTC many-to-many videoconferencing system, actually, I already did it, I am using socket.IO as signalling server, and everything goes super well, I am using EnterpriseDB Apache for serving my .html file on port (8081) and Node.js for serving socket.IO on port (3000), It is working like charm in localhost, no errors, My ISSUE is serving for external access with my public IP, I am testing with my friends and these browsing services: www.browserstack and www.browserling (trial versions).

  • with www.browserstack, everything is working fine with either mozilla 42 or chrome 47

  • with www.browserling, I got these errors

    Firefox 41: ReferenceError: io is not defined

    Chrome 45: Failed to load resource http://localhost:3000/socket.io/socket.io.js net::ERR_CONNECTION_REFUSED Uncaught ReferenceError: io is not defined

  • with my friends, I am having the same issues as www.browserling, but they are using the latest browser versions (Chrome 47 and Firefox 42) for connecting to my PC server.

I think this is not a browser version issue, The issue is on serving the socket.io.js file, finally, here is my code:

It shows just the important things in order to solve this problem:

///NODE.JS DIRECTORY
////////////////////serverside.js
var port = 3000;
var io = require('socket.io').listen(port);
io.sockets.on('connection', function (socket){.........}


///APACHE DIRECTORY
////////////////////clientside.js 
//Connect to signalling server   
var socket = io.connect("http://localhost:3000");

////////////////////avq.html
<!DOCTYPE html>

<html lang="es">

    <head><meta charset="UTF-8">
    </head> 
    <body>
        <script src="http://localhost:3000/socket.io/socket.io.js"></script>
        <script src="js/clientside.js"></script>
    </body>
</html>

this is my server URL if anyone wants to try: http://201.209.104.33:8081/webrtcexamples/avq.html

Ciao, I'm implementing a webRTC many-to-many videoconferencing system, actually, I already did it, I am using socket.IO as signalling server, and everything goes super well, I am using EnterpriseDB Apache for serving my .html file on port (8081) and Node.js for serving socket.IO on port (3000), It is working like charm in localhost, no errors, My ISSUE is serving for external access with my public IP, I am testing with my friends and these browsing services: www.browserstack.com and www.browserling.com (trial versions).

  • with www.browserstack.com, everything is working fine with either mozilla 42 or chrome 47

  • with www.browserling.com, I got these errors

    Firefox 41: ReferenceError: io is not defined

    Chrome 45: Failed to load resource http://localhost:3000/socket.io/socket.io.js net::ERR_CONNECTION_REFUSED Uncaught ReferenceError: io is not defined

  • with my friends, I am having the same issues as www.browserling.com, but they are using the latest browser versions (Chrome 47 and Firefox 42) for connecting to my PC server.

I think this is not a browser version issue, The issue is on serving the socket.io.js file, finally, here is my code:

It shows just the important things in order to solve this problem:

///NODE.JS DIRECTORY
////////////////////serverside.js
var port = 3000;
var io = require('socket.io').listen(port);
io.sockets.on('connection', function (socket){.........}


///APACHE DIRECTORY
////////////////////clientside.js 
//Connect to signalling server   
var socket = io.connect("http://localhost:3000");

////////////////////avq.html
<!DOCTYPE html>

<html lang="es">

    <head><meta charset="UTF-8">
    </head> 
    <body>
        <script src="http://localhost:3000/socket.io/socket.io.js"></script>
        <script src="js/clientside.js"></script>
    </body>
</html>

this is my server URL if anyone wants to try: http://201.209.104.33:8081/webrtcexamples/avq.html

Share Improve this question edited Jan 6, 2016 at 18:42 Alexander O'Mara 60.5k19 gold badges172 silver badges181 bronze badges asked Dec 12, 2015 at 23:44 Jose Ricardo Citerio AlcalaJose Ricardo Citerio Alcala 5361 gold badge9 silver badges26 bronze badges 0
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2 Answers 2

Reset to default 9

localhost is a special host name that points to the same computer as the one requesting it. So anyone using a different computer than yours and trying to connect to localhost will try to connect to its own computer, not yours. As the server is not running on their computer, they quite obviously get a "connection refused" error.

You need to replace localhost with a globally accessible address (domain name or IP address). This also implies that you need to have your router map your external IP address to your computer running the server for this port (otherwise they will connect to your router, not your server).

try io.connect("http://201.209.104.33:3000"); instead of io.connect("http://localhost:3000");

EDIT

You need to run the socket on the server that it is being used. So if you run it on your PC, your friends pc will not see it, because when it connects to localhost, it will try to connect to the localhost of THEIR pc. Not yours.

I had the same issue before. You need to run it off of the server so that everyone can connect to it.

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