cloudlinux_ea3_to_ea4 script is a utility provided by CloudLinux to assist with the migration of servers from EasyApache 3 (EA3) to EasyApache 4 (EA4).

Here's a brief explanation of what it does:

1. EasyApache 3 (EA3): EA3 was a web server stack provided by cPanel that allowed for the easy configuration of Apache and PHP settings.

2. EasyApache 4 (EA4): EA4 is the next-generation web server stack provided by cPanel. It offers improvements over EA3 and is the recommended choice for new cPanel installations.

The cloudlinux_ea3_to_ea4 script helps automate the process of migrating your server's web server configuration and PHP settings from EA3 to EA4.

Please note:

• Running this script is a significant operation that can impact your server's web services and PHP configurations. It's essential to have backups in place before proceeding.
• Before running the script, I recommend reviewing the official CloudLinux documentation and contacting their support for specific guidance on using the cloudlinux_ea3_to_ea4 script.

Since software and scripts can be updated and changed over time, I recommend checking the latest CloudLinux documentation or contacting CloudLinux directly for the most up-to-date information about the cloudlinux_ea3_to_ea4 script and its usage.