How to add PHP support for jailed SSH users in ISPConfig 3

Jailkit is an easy to use tool to create and maintain jail environments for shell users on Linux. In this guide, I will show you how to move PHP and its dependencies into the jail so that the jailed user can execute PHP scripts inside the jail.

Edit the jailkit .ini file and add a section for PHP at the end of the file

Open the jk_init.ini file with an editor:

nano /etc/jailkit/jk_init.ini

and paste the following lines at the end of the file:

[php]
comment = the php interpreter and libraries
executables = /usr/bin/php5
directories = /usr/lib/php5, /usr/share/php, /usr/share/php5, /etc/php5, /usr/share/php-geshi, [B]/usr/share/zoneinfo[/B]
includesections = env

[env]
comment = environment variables
executables = /usr/bin/env

Then run the command:

jk_init -c /etc/jailkit/jk_init.ini -f -k -j /var/www/clients/client1/web1 php

To install PHP and it's dependencies into the jail.

Add PHP for all newly jailed shell users

To add PHP for all newly jailed shell users that you add in ISPConfig, follow these steps:

1. Login to ISPConfig and go to System > Server Config
2. Select the server and go to the jailkit tab.
3. Add the word "PHP" separated by a white space at the end of the "Jailkit chroot app sections" field and press save.

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