Rackspace Inc. is a managed cloud computing company based in Windcrest, Texas, USA, a suburb of San Antonio, Texas. The company also has offices in Australia, the United Kingdom, Switzerland, Israel, and Hong Kong, and data centers operating in Texas, Illinois, Virginia, the United Kingdom, Australia, and Hong Kong. The company's email and apps division operates from Blacksburg, VA; other offices are located in Austin, Texas and San Francisco, California.
Zabbix is an enterprise open source monitoring solution for networks and applications, created by Alexei Vladishev. It is designed to monitor and track the status of various network services, servers, and other network hardware. Zabbix uses MySQL, PostgreSQL, SQLite, Oracle or IBM DB2 to store data. Its backend is written in C and the web frontend is written in PHP. Zabbix offers several monitoring options: