This document provides instructions for installing Plesk on Linux, FreeBSD, and Mac OS systems. The key steps are:
1. Download the Auto-installer utility for the desired OS from the Plesk website.
2. Run the Auto-installer, specifying whether to install from a local file, official update server, or other site.
3. The Auto-installer will then guide the user through the remainder of the installation process.
Prior to installing Plesk on FreeBSD, the 'kern_securelevel_enable="NO"' entry must be added to /etc/rc.conf and the server restarted. Instructions are provided for a single server installation; multi-server