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Complete Guide to the Passenger Package in EasyApache 4

This article explains the new ea-apache24-mod-passenger package, which replaces older Passenger modules in EasyApache 4. The updated package no longer installs Ruby automatically and instead uses the newest installed versions of Ruby, NodeJS, and Python on the system. It also covers installation methods, default paths, symlinks, troubleshooting missing parameters, and Passenger runtime settings.

Passenger packageEasyApache 4Ruby NodeJS Python runtime

~2 min read • Updated Feb 22, 2026

1. Overview


The ea-apache24-mod-passenger package replaces the older ea-ruby2*-mod_passenger packages. Previously, installing Passenger also installed Ruby, and the Ruby version depended on the operating system.


With the new Passenger package, Ruby is no longer bundled. Instead, Passenger automatically uses the newest installed versions of Ruby, NodeJS, and Python available on the system. This simplifies installation and ensures compatibility with future versions.


If your application requires a different version of Ruby, NodeJS, or Python, you must configure it manually.



2. Install the Passenger Package


You can install ea-apache24-mod-passenger using one of the following methods:

  • Through WHM → EasyApache 4 (WHM » Home » Software » EasyApache 4)
  • Through the command line using your system’s package manager


3. Using Passenger Applications


You can install and manage Passenger applications using the Application Manager interface in cPanel:

cPanel » Home » Software » Application Manager


New applications will automatically use the latest installed version of Ruby, NodeJS, or Python. Existing applications will continue using their current configuration.



4. Default Application Paths


Passenger uses the following default paths for each language:

  • Ruby: /etc/cpanel/ea4/passenger.ruby
  • NodeJS: /etc/cpanel/ea4/passenger.nodejs
  • Python: /etc/cpanel/ea4/passenger.python

The package also creates symlinks pointing to the newest installed version of each language:

  • Ruby: /etc/cpanel/ea4/passenger.ruby.system-default
  • NodeJS: /etc/cpanel/ea4/passenger.nodejs.system-default
  • Python: /etc/cpanel/ea4/passenger.python.system-default


5. Fixing Missing Parameters Errors


If you encounter a “missing parameters” error in the Application Manager interface, you can reset Passenger application settings using:

/usr/local/bin/ea-passenger-runtime-applications-settings --fix

Note: This script is available only if the ea-passenger-runtime package is installed.


The script verifies and resets the system’s Ruby, Python, and NodeJS settings to ensure proper Passenger functionality.


To view current Passenger runtime settings:

/usr/local/bin/ea-passenger-runtime-applications-settings


Conclusion


The ea-apache24-mod-passenger package modernizes Passenger support in EasyApache 4 by removing bundled Ruby and using the newest installed runtimes. With default paths, symlinks, and runtime tools, managing Passenger applications becomes simpler and more flexible for administrators and developers.


Written & researched by Dr. Shahin Siami

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