PHP/FPM

PHP-FPM is a FastCGI backend that Nginx can use to serve MediaWiki. HHVM is generally the better choice, but if you're not using 64-bit Intel/AMD platforms.

• Ubuntu 16.04 - https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-in-ubuntu-16-04
• CentOS 7 - https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-centos-7

Sources

https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-centos-7