How to install OpenLiteSpeed, PHP 7.3, MySQL on Debian 7/8 and CentOS 7

OpenLiteSpeed is a high-performance, scalable, open-source Web Server developed by ¬†Litespeed technologies. It is apache drop-in replacement as it can be replaced apache web server without any major change. OpenLiteSpeed contains all the essential features right out of the box from LiteSpeed web server. In WordPress, OpenLiteSpeed along with LSCache plugin is the best choice …