How can I create a Sub Domain that links to NodeJS application?

Posted on December 23, 2014

I have recently created a NodeJS application and am trying to get a subdomain to point to it. My Digital Ocean DNS is fine and is directing to my server properly. My Apache virtual host is allowing the connection, however it sends back my default document root, not the data that is being served on the specified port. I fear I may be doing it wrong. Could someone provide me with steps on how to make Apache point to a port on my server?

Thanks.

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Mark Rabey

February 8, 2015

I’m not sure exactly how you went about creating and deploying your app, but take a look at the post I just wrote here: http://markrabey.com/blog/2015/02/08/express-site-with-digital-ocean-and-dokku/ - You may be able to abstract some of the deployment steps to help you out.

Ryan Quinn

December 23, 2014

A standard A or CNAME record can only direct a subdomain at a name or IP address but cannot specify a port. SRV records will allow you to specify a port but may not be supported in all instances. The best course of action to host a node.js application on a subdomain would be to set it up on a droplet with it’s own IP and point your subdomain to that.

Kamal Nasser

December 23, 2014

Another option would be configuring Apache to reverse proxy requests to NodeJS. Create a VirtualHost that looks like this:

<VirtualHost *:80>
    ServerName node.yourdomain.com

    <Location "/">
        ProxyPreserveHost On
        ProxyPass http://localhost:3000/
        ProxyPassReverse http://localhost:3000/
    </Location>
</VirtualHost>

Replace 3000 with the port your nodejs app is listening on and and node.yourdomain.com with the actual domain name you want to serve your nodejs app on.

Then, restart Apache: