How To Install Litespeed Web Server in cPanel

This only works with LiteSpeed Enterprise Edition, you need a trial key or an Enterprise License serial number.

Note: cPanel users, for support issues, please use LiteSpeed forum for free support. cPanel support will NOT handle issues related to LiteSpeed server.

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Step 1: Install LiteSpeed WHM plugin Run the following commands from ssh as root

cd /usr/src


sh ./

rm -f

Note: To uninstall WHM LiteSpeed plugin,

run command at /usr/local/cpanel/whostmgr/docroot/cgi/lsws/


Step 2: Install LiteSpeed Speed Web Server from within WHM

1. click “LiteSpeed Web Server Plugin for WHM” in “Plugins” section of WHM.

2. click “Install LiteSpeed Web Server”

3. Fill in the form to specify

* Trial license key or serial number

* LiteSpeed target installation directory

* Port Offset ( set to 0 to replace Apache otherwise set a number like “2000” to try LiteSpeed on port 2080 )

* Whether to enable PHP SuEXEC

* Assign user name and password for LWSW web admin console

* Your email address as the Administrators email.

4. Click “Next” to install LiteSpeed If you set Port Offset to “0”, it may stop Apache and start LiteSpeed after a successful installation, you may want to switch back to Apache temporarily as we still need to build PHP binary for LiteSpeed.


Step 3: Build matching PHP binary There is a pre-built PHP 4 binary coming with LSWS, however, you should build your own PHP binary using matching configuration options used by Apache mod_php. If LiteSpeed is running, you should switch back to Apache temporarily by clicking “switch to Apache” link. Then, click “Build Matching PHP binary” link. It is going take a while.


Step 4: Start LiteSpeed again Just click “Restart LiteSpeed” Then you can verify if everything works as expected. It should! If “Port Offset” is set to non-zero, you can now replace Apache with LiteSpeed Web Server. Just click “Switch to LiteSpeed”. That’s it

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