This work is about creation of system which allows for cable TV to manage and monitor their internet subscribers and equipment (modems, servers, routers) over database. Created system allows add remove and manage subscribers over internet browser interface. Operator can monitor each subscribers downloaded and uploaded data amount. This system automatically updates routers and servers configurations as subscriber is being added removed or edited. This system also monitors servers and routers state: traffic, packets transmitted, CPU use, system load, RAM use and disk use. Main router periodically updates database with information about each subscribers downloaded and uploaded data amount, and if subscriber has reached its data limit database server responds to this information by sending new configuration to main router for this subscriber. This system allowed company install cheaper services with restricted data amounts for subscribers and subscribers number increased about twice over a year.