Linux is free open-source software which means the source code is available for the operating system, which can be edited according to specific needs.
Apache
Apache is an open source web server, the most popular in use.
MySQL
MySQL is a multithreaded, multi-user, SQL database management system (DBMS) now owned by Oracle Corporation.
PHP
PHP is a reflective programming language originally designed for producing dynamic web pages. PHP is used mainly in server-side application software. Perl and Python can be used similarly..
