Skip to content

Register now for our Web Enablement Ecosystem webinar!

  • Contact us: +34 944 58 06 58
  • Plesk Partner Program
  • Plesk Lifecycle Policy
  • Blog
  • Contact us
  • Plesk 360
  • Contact us: +34 944 58 06 58
  • Plesk Partner Program
  • Plesk Lifecycle Policy
  • Blog
  • Contact us
  • Plesk 360
  • Solutions
    By Role
    • Developers
    • Content Managers
    • Digital Agencies
    • IT Admins
    • Web Hosters
    • Hyperscalers
    • Developers
    • Content Managers
    • Digital Agencies
    • IT Admins
    • Web Hosters
    • Hyperscalers
    By Edition
    • Web Admin Edition
    • Web Pro Edition
    • Web Host Edition
    • Business & Collaboration
    • Plesk WP Edition
    • Web Admin Edition
    • Web Pro Edition
    • Web Host Edition
    • Business & Collaboration
    • Plesk WP Edition
    By Cloud
    • Amazon Web Services
    • Microsoft Azure
    • Alibaba Cloud
    • GCP Marketplace
    • Vultr
    • DigitalOcean
    • Linode
    • UpCloud
    • Amazon Web Services
    • Microsoft Azure
    • Alibaba Cloud
    • GCP Marketplace
    • Vultr
    • DigitalOcean
    • Linode
    • UpCloud
    Partner Program
    Exclusive discounts, benefits and exposure to take your business to the next level
    Become a partner
    • By Role
      • Developers
      • Content Managers
      • Digital Agencies
      • IT Admins
      • Web Hosters
      • Hyperscalers
    • By Edition
      • Web Admin Edition
      • Web Pro Edition
      • Web Host Edition
      • Business & Collaboration
      • WP Edition
    • By Cloud
      • Amazon Web Services
      • Microsoft Azure
      • Alibaba Cloud
      • GCP Marketplace
      • Vultr
      • DigitalOcean
      • Linode
      • UpCloud
    • Partner Program
      • Partner Program
  • Product
    Explore Features
    • Everyone
    • Admins & Web Hosters
    • Developers
    • Designers & Agencies
    • Plesk Features
    • Everyone
    • Admins & Web Hosters
    • Developers
    • Designers & Agencies
    • Plesk Features
    Key Topics
    • SocialBee
    • WP Toolkit
    • Sitejet Builder
    • SEO Toolkit
    • Joomla! Toolkit
    • Plesk Premium Email
    • Plesk Email Security
    • SocialBee
    • WP Toolkit
    • Sitejet Builder
    • SEO Toolkit
    • Joomla! Toolkit
    • Plesk Premium Email
    • Plesk Email Security
    Feature Packs
    • Business & Collaboration
    • WP Pack
    • Hosting Pack
    • Power Pack
    • Language Pack
    • Business & Collaboration
    • WP Pack
    • Hosting Pack
    • Power Pack
    • Language Pack
    Featured Extension
    SocialBee
    • Explore Features
      • Everyone
      • Admins & Web Hosters
      • Developers
      • Designers & Agencies
      • Plesk Features
    • Key Topics
      • SocialBee
      • WP Toolkit
      • Sitejet Builder for Plesk
      • SEO Toolkit
      • Plesk Premium Email
      • Plesk Email Security
    • Feature Packs
      • Business & Collaboration
      • WP Pack
      • Hosting Pack
      • Power Pack
      • Language Pack
    • Featured Extension
      • Extension
  • Pricing
  • Extensions
  • Help Center
  • More
    • Careers
    • Events
    • Plesk University
  • FREE TRIAL
  • Solutions
    • By Role
      • Developers
      • Content Managers
      • Digital Agencies
      • IT Admins
      • Web Hosters
      • Hyperscalers
    • By Edition
      • Web Admin Edition
      • Web Pro Edition
      • Web Host Edition
      • Business & Collaboration
      • WP Edition
    • By Cloud
      • Amazon Web Services
      • Microsoft Azure
      • Alibaba Cloud
      • GCP Marketplace
      • Vultr
      • DigitalOcean
      • Linode
      • UpCloud
    • Partner Program
      • Partner Program
  • Product
    • Explore Features
      • Everyone
      • Admins & Web Hosters
      • Developers
      • Designers & Agencies
      • Plesk Features
    • Key Topics
      • SocialBee
      • WP Toolkit
      • Sitejet Builder
      • SEO Toolkit
      • Joomla! Toolkit
      • Plesk Premium Email
      • Plesk Email Security
    • Feature Packs
      • Business & Collaboration
      • WP Pack
      • Hosting Pack
      • Power Pack
      • Language Pack
    • Featured Extension
      • SocialBee
  • Pricing
  • Extensions
  • Help center
  • More
    • Careers
    • Events
    • Plesk University
    • Blog
    • Plesk Partner Program
    • Contact Us
  • FREE TRIAL
  • Solutions
    • By Role
      • Developers
      • Content Managers
      • Digital Agencies
      • IT Admins
      • Web Hosters
      • Hyperscalers
    • By Edition
      • Web Admin Edition
      • Web Pro Edition
      • Web Host Edition
      • Business & Collaboration
      • WP Edition
    • By Cloud
      • Amazon Web Services
      • Microsoft Azure
      • Alibaba Cloud
      • GCP Marketplace
      • Vultr
      • DigitalOcean
      • Linode
      • UpCloud
    • Partner Program
      • Partner Program
  • Product
    • Explore Features
      • Everyone
      • Admins & Web Hosters
      • Developers
      • Designers & Agencies
      • Plesk Features
    • Key Topics
      • SocialBee
      • WP Toolkit
      • Sitejet Builder
      • SEO Toolkit
      • Joomla! Toolkit
      • Plesk Premium Email
      • Plesk Email Security
    • Feature Packs
      • Business & Collaboration
      • WP Pack
      • Hosting Pack
      • Power Pack
      • Language Pack
    • Featured Extension
      • SocialBee
  • Pricing
  • Extensions
  • Help center
  • More
    • Careers
    • Events
    • Plesk University
    • Blog
    • Plesk Partner Program
    • Contact Us
  • FREE TRIAL

Knowledge Base

mod_perl, mod_python, mod_php Apache modules are not installed by default in Plesk

 
apacheappscentoschrootdatabase

Question

mod_perl, mod_python, mod_php Apache modules are not installed by default.

Why are not they installed?

Answer

Starting from Plesk 12.5, the following changes were made in terms of Apache modules:

  • mod_perl and mod_python are not included.

  • mod_php still included but disabled by default.

It was done for security reasons.

Why using these Apache modules on shared hosting is insecure:

  1. File security.
    mod_php, mod_perl, and mod_python run under the account of Apache server, and therefore scripts executed by these modules can potentially access any user file. For example, files containing highly confidential personal data can be read by a script from another domain.

  2. Security of database connections.
    Database connections of other users can be hijacked, and since all users can read each other's code, database usernames and passwords are visible to any user.

  3. Potential system compromising.
    Due to security issues in Apache code (it can be resolved by using jails or chroot mechanisms).

Which options to use Perl and Python remain:

1. By default, Python and Perl are handled by FastCGI ( mod_fcgid module).
2. For Python, there is no special binary and, therefore, it has to be done inside the script itself. So it is necessary to add the required code into the .py file or use mod_wsgi (as described in this article).
3. For Python, it is also possible to use the Application server (this option is described in this article ).

4. As an alternative for Python support, consider using mod_wsgi which is part of CentOS and also allows Python apps to run under Apache.

Note: If an application is designed for use with mod_perl or mod_python, updating its code can be required.

Tweet
Share
Share
Email
0 Shares
Read the full article
Related Posts

Your Complete .htaccess Guide: Including .htaccess Basics and More

Read More »

NGINX vs Apache – Which Is the Best Web Server in 2024?

Read More »

Top Web Servers For Linux And Windows

Read More »
Knowledge Base

Mail accounts cannot log into Plesk web interface if password is encrypted

Read More »

Pre-migration checks show warning: The following Apache modules are not installed

Read More »

Which PHP version and PHP handler should be chosen for the domain in Plesk

Read More »

How to install Django applications in Plesk?

Read More »

Hosting Wiki

  • Content Security Policy ( CSP )
  • Server Redundancy
  • AMP
  • CGI
  • Bare Metal Server
  • Oracle VM Server
  • Server Virtualization Software
  • Windows Server
  • Linux
  • Python
  • Hosting Control Panel
  • Plesk
  • SQL database
  • NoSQL Database
  • Apache Tomcat
  • Apache
  • Web Server
  • DNS Server
  • Colocation Hosting
  • Reseller Hosting
  • Cloud Hosting
  • VPS Hosting
  • Dedicated Hosting
  • Shared Hosting
  • Free Hosting
  • Managed Hosting

Industry
Partners

industry-partner_ALIBABA
industry-partner_GOOGLEPARTNER
industry-partner_MICROSOFT
industry-partner_REDHAT-r2
industry-partner_ALIBABA
industry-partner_AUTOMATTIC
industry-partner_AWS
industry-partner_DIGITALOCEAN
industry-partner_SCALEWAY
Follow us:
Facebook Twitter Linkedin Youtube Github

COMPANY

About Plesk
Our Brand
Legal
Careers
Impressum

PRODUCT

Pricing 
Extensions
What’s new

KNOWLEDGE BASE

Documentation
Help Center
Migrate to Plesk
Contact Us
Hosting Wiki
Preview releases

PROGRAMS

Contributor Program NEW
Partner Program
Affiliate ProgramNEW

COMMUNITY

Blog
Forums 
Plesk University

First defaul

Company

About Plesk
Our Brand
Legal
Careers
Impressum

PRODUCT

Pricing 
Extensions
What’s new

KNOWLEDGE BASE​

Documentation
Help Center
Migrate to Plesk
Contact Us
Hosting Wiki
Preview releases

PROGRAMS​

Contributor Program NEW
Partner Program
Affiliate ProgramNEW

COMMUNITY​

Blog
Forums
Plesk University

Follow us:
Facebook Twitter Linkedin Youtube Github

© 2025 WebPros International GmbH. All rights reserved. Plesk and the Plesk logo are trademarks of WebPros International GmbH.

Managed with love with Plesk WP Toolkit