With phpAdamoto it is possible to administrate many clients and servers from a web console powered by php. It lets you start and monitor any script on client machines to do any kind of administrative work like changing configurations, install software an
phpAnti-Leech is a php anti-leeching script which features a flexible configuration file and many features that put it ahead of some commercial software. This script has IP download limiting, download logging, directory masking, and resuming.