Mod_lsapi is a high performance Apache module that is based on the technology behind the LiteSpeed web server. It’s a drop-in replacement for suPHP, but it can also serve Ruby and Python scripts. It works exactly the same as suPHP, with the big difference that it is faster and uses less system resources to serve PHP files.
lsphp on the other hand, is the integration between PHP and LSAPI (LiteSpeed Server Application Programming Interface), originally designed for LiteSpeed Webserver, now it’s available for Apache 2.2 and 2.4, which means it’s 100% compatible with cPanel servers.
Mod_lsapi requirements
In order to install mod_lsapi on CloudLinux + cPanel you will need to have this pre-requisites enabled.
- SuExecUserGroup should be present for each virtual host.
- CageFS and PHP Selector are needed, if not present, this will be installed as dependencies.
How can I Install Mod_lsapi ?
On CentOS and RHEL systems you can install mod_lsapi using the following commands:
yum install liblsapi liblsapi-devel yum install mod_lsapi
If CageFS is not started you will need to run the init argument and enable-all
cagefsctl --init cagefsctl --enable-all
Run the setup script to setup mod_lsapi configurations for apache web server
/usr/bin/switch_mod_lsapi --setup
You can also enable mod_lsapi for a single domain
/usr/bin/switch_mod_lsapi --enable-domain [domain]
Then run you can enable mod_lsapi globally, for all the cPanel users in your server
/usr/bin/switch_mod_lsapi --enable-global
Restart Apache to apply changes
service httpd restart
Installing on cPanel servers with EasyApache 4
If you have EasyApache 4, you can use this installation / convert instructions from CloudLinux announcement: Beta: EasyApache 4 released for CloudLinux
Once you have EA4 on CloudLinux, you can install mod_lsapi using this commands
yum install liblsapi liblsapi-devel yum install ea-apache24-mod_lsapi
You can also install mod_lsapi on EA4 from its web interface from the list of available modules.
How can I uninstall mod_lsapi from Apache?
/usr/bin/switch_mod_lsapi --uninstall
Further reading: