CageFS and PHP Selector (Installation) in CloudLinux

CageFS and PHP Selector are two major components of Cloud Linux.

The installation of PHP Selector

PHP Selector is a CloudLinux component that sits on top of CageFS. It allows each user to select PHP version & module based on their needs. PHP Selector requires account to have CageFS enabled to work.

1) The installation of PHP Selector presumes that you already have CageFS & LVE Manager installed.

2) Installation of different versions of PHP & modules:

$ yum groupinstall alt-php

3) Update CageFS & LVE Manager with support for PHP Alternatives

$ yum update cagefs lvemanager

Command Line Tools

/usr/bin/cl-selector – tool is used to select version of PHP interpreter
inside CageFS

-l | –list            : List available alternatives for item specified

-L | –list-extensions : List available extensions for a user

-e | –enable          : Enable an extension for a user

-i | –interpreter     : Specify an interpreter for an extension (e.g. php)

-d | –disable         : Disable an extension for a user

-a | –all             : Show available extensions for a user

-c | –current         : Print alternative currently in use for a user

-u | –user            : Specify a user

-v | –version         : Specify a version for an alternative

-s | –select          : Select an alternative to be used

-p | –prove           : Print if CageFS enabled for a given user

-r | –reload          : Reload specified processes for a given user

-b | –backup          : backup linkage configuration for a user

-q | –quiet           : Suppress error messages

-h | –help            : Print this message


The installation of CageFS Selector

CageFS is a virtualized file system and a set of tools to contain each user in its own ‘cage’. Each customer will have its own fully functional CageFS, with all the system files, tools, etc…

To install CageFS:

$ yum install cagefs
$ /usr/sbin/cagefsctl –init

That last command will create skeleton directory that might be around 7GB in

If your /usr/share not have enough disk space, then follow the steps below to place cagefs skeleton in different location.

$ mkdir /home/cagefs-skeleton

$ ln -s /home/cagefs-skeleton /usr/share/cagefs-skeleton

CageFS will automatically detect and configure all necessary files for:

•       cPanel
•       Plesk
•       DirectAdmin
•       ISPmanager
•       Interworx
•       MySQL
•       PostgreSQL
•       LiteSpeed




CageFS and PHP Selector (Installation) in CloudLinux, Hostripples Web Hosting
Vishwajit Kale
Vishwajit Kale blazed onto the digital marketing scene back in 2015 and is the digital marketing strategist of Hostripples, a company that aims to provide affordable web hosting solutions. Vishwajit is experienced in digital and content marketing along with SEO. He's fond of writing technology blogs, traveling and reading.
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