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.
NGinx
Nginx (pronounced engine-x) is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server.
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..
