opendns.com the solution for the belgian content firewall
The plan of the belgian minister of IT to put a content firewall around the belgian internet has not been thought through and should be re-adjusted.
http://www.opendns.com is an open source initiative that could be the solution if some other questions are answered. The idea is to use the DNS servers to block the addresses of the malware or childporn sites. This is easily done as you just ad a blacklist. The cost is minimal compared to other systems.
The other advantage is that you can add more easily another dns server (an FDNS - Filtering DNS server) to the existing parcs and that you can hardcode these in dialup software (for example to contact egov and ebizz sites and not to be redirected to phishing sites). If the sites are being taken down, you can easily put others in its place or just redirect to others.
The problem with opendns.com is that in their interview they say that everything is going automaticcally and that there is no human supervision or control, which seems a bit 'naïve' and that in an analysis of their infrastructure they don't use SPF to indicate the security of their identity.