Blocking data for request from network involves requesting data via Clean Surf Server using predetermined filter criterion and acting as filter to distinguish unwanted data from tolerated data

摘要

The method involves requesting data from a network via a Clean Surf Server (18) using a predetermined filter criterion and acting as a filter server between an end user computer (12) and the network in order to distinguish unwanted data from data to be tolerated. The method is used in a firewall system (14) to prevent the reception of unwanted contents at several networked computers (10). Independent claims are also included for the following: a method of filtering data for request from a network, a use of the method to filter unwanted sequences from image or tone sequences or videos, a computer program, a computer program product and a computer system containing an arrangement for implementing the method.