If you have a home network, just login to the router and tweak a couple of settings there. Complete instructions can be found on this OpenDNS Setup page. Note that you DO NOT have to create a free account to use the service. OpenDNS gives you some additional benefits as well. Here ...
OpenDNS has individualizedinstallation instructions for 21 different router brands. They cover everything from the well-known brands (like Linksys and Netgear) down to router brands that I’ve never heard of (like ZyXEL). If you don’t have any of those, though, OpenDNS also has a set of...