Jannic web remote firewall is a internet lock for classromms and office without client installations. Jannic is designed for use with proxy servers or a dedicadet pc with 2 network adapters. Jannic can work with DHCP and works OS independend for client-pc. Jannic can control one PC, gropus of PC and all registered PC over a web interface from any PC in the network. The web interface is a integrated part of jannic and so nobody must administrate a webserver like Apache or IIS.