I have made use of Linux, Apache, MySQL (or Posgresql) and PHP servers for alot of personal and work related projects. For example, i have used L.A.M.P servers to run things like freeradius servers or DHCP servers that use SQL for information to drive the services. Apache and PHP were used to provide an easy way for support people to check status of services and do other admin tasks.

I have also used PHP, MySQL and SNMP to do network management tasks, such as baseline checking of switch configurations, OS management, switch deployments and other standardized configuration tasks.