nodejs serve not working responding connection timesout

Question

I have this in my server.js :

var app = require('express')();
var http = require('http');
http.createServer(function(request, response) {
      response.writeHead(200, {"Content-Type": "text/plain"});
      response.write("It's alive!");
      response.end();
}).listen(3000);

this works fine on local but not when I deploy it and try access to my shared.domain.ma:3000 In the client side I have a Websocket that trying to connect to my server in that address but it give me net::ERR_CONNECTION_TIMED_OUT ann I tried curl and the result is the same again - What could be reason of this problem?

Try to change the port to 80 in case there's a firewall. make sure it's not used. — a_at_cyber_dot_training, Mar 07 '17 at 11:43
yes I just checked its the damn firewall .. I cant use 80 or 8080 cuz they are allready used ! How can I forward 3000 to 80 for just this subdomain — Siempay, Mar 07 '17 at 11:46
if you are using linux server follow this gist https://gist.github.com/kentbrew/776580 — Vinay Pandya, Mar 07 '17 at 12:04

score 0 · Answer 1 · edited May 23 '17 at 12:17

You provided very little info but after some of your comments it is more clear:

yes I just checked its the damn firewall .. I cant use 80 or 8080 cuz they are allready used ! How can I forward 3000 to 80 for just this subdomain

I think you want to forward 80 to 3000, not the other way around.

You didn't say what server do you use for a reverse proxy. If it is nginx then you can use something like this:

server {
    listen 80;
    server_name www.example.com;
    location / {
        proxy_pass http://localhost:3000;
    }
}

See this answer for more details:

Where do I put my Node JS app so it is accessible via the main website?

Of course you can do the same with Apache, just with different config. Search for reverse proxy config.

score 0 · Answer 2 · answered Mar 07 '17 at 20:45

You are firewalled, as noted in the comments. For nginx, check the other answer. For Apache, use the following configuration, don't forget a2enmod proxy:

#/etc/httpd/conf.d/node.conf
<VirtualHost *:80>
   ServerAdmin webmaster@localhost
   ServerName mydomain
   ServerAlias www.mydomain.com
            
   ProxyRequests Off
   ProxyPreserveHost On
   ProxyVia Full
   <Proxy *>
      Require all granted
   </Proxy>
 
   <Location />
      ProxyPass http://127.0.0.1:3000
      ProxyPassReverse http://127.0.0.1:3000
   </Location>

nodejs serve not working responding connection timesout

2 Answers2