Here are the best known filter programs. You must download the software, install it and configure it. You will be able to define precisely and effectively what children will be allowed to see and monitor their Internet use.

XOOLOO french company supported by the french government.
http://controle-parental.xooloo.net/

OPTENET Web Filter by OpteNet.
http://www.optenet.fr/

Control Kids by Proxymis Multimedia.
http://www.controlkids.com/fr/

Net Nanny by Net Nanny Software Inc.
http://www.netnanny.com/

Cyber Patrol by Microsystems Software.
http://www.cyberpatrol.com/

Surf Control by SurfControl plc.
http://www.surfcontrol.com/

Cyber Sitter by Solid Oak Software Inc.
http://www.solidoak.com/