What Is Mod_Auth_Mysql?
mod_auth_mysql is a Apache module used for authenticating users against a MySQL database. It is commonly used to protect pages and directories accessed via a web browser. You can view more about it on the project page.
This guide assumes you already have a working mysql installation and Apache
Percona Xtrabackup can be used to create "hot backups" of MySQL servers fairly quickly and can avoid some of the pitfalls of mysqldump. Xtrabackup can be setup to use backup locks instead of read locks which is much less invasive, this is available on innodb tables. MyISAM and other tables
Galera cluster is a true multi-master MySQL cluster using synchronous replication. It allows for any of the nodes to be used as a master or all of them as well as providing automatic node joining and node removal. The multi-master configuration is very different from the typical master-slave configuration
Go also known as golang, is a compiled computer programming language developed by google. It is loosely based on the C language but designed to overcome some of its short comings. It is a general purpose language and can be used from server-side development to games and streaming media. It
Memcached is a high performance storage engine designed for storing chunks for data, so it is great for storing sessions in it. The upside of doing this you notice a performance benefit from not writing these disk or a database is that you gain a performance increase. The downside is