Running Node.js from the Front End Web Interface on Plesk Onyx panel

Question

How should we need to run Node.js app especially, from the Web Interface causes Error:403 & 500 Server Error

• Document Root Application will not work because document root is not a subchild of application root

After setting the Document Root to point to the Application Root structure error disappeared

• Without even enabling the Node.js startup button

• After Enabling the Node.js startup button

Got 500 Internal Server Error

When logging from the SSH and running from the terminal it did worked without causing any server error

root@user:/var/www/vhosts/somedomain/httpdocs/app# node app.js
Listening on http://127.0.0.1:5000
Connected!
^C
root@user:/

and the same code was up and running from Heroku server after allowing remote connections from any host to access our server's database

• Node.js Version: 9.10.1
• Plesk Onyx 17.8.11

How should we need to configure the Plesk Onyx panel. So that Forbidden(403) Error & Internal Server Error(500) should be vanished?

Answer 1

• 403 Forbidden: The node.js application shows the following error if PHP support is set as PHP FPM handler served by nginx in Domains > example.com > PHP Settings:
  

• The following error may be found in /var/www/vhosts/example.com/proxy_error_log and in /var/log/httpd/error_log

Reason:

Plesk does not support the scenario when PHP-FPM is being used along with Node.js on the same domain.

Solutions:

1. If it is necessary to have both PHP and Node.js, it is recommended to use separate subdomains for each application. For example, a site with PHP application — www.example.com, chat as Node.js application — chat.example.com. and PHP-FPM is faster when compared to the FastCGI especially in this context with Plesk Onyx panel.

2. Otherwise, change handler type from FPM to the FastCGI under Domains > example.com > PHP Settings.