OpenDNS

OpenDNS is an excellent way to provide basic internet access control on your network for free. It uses St. Bernard to provide Web content filtering, anti-phishing and some basic Malware Protection.

OpenDNS nameservers are 208.67.222.222 and 208.67.220.220. you can use those directly if you don’t want to use any filtering capabilities if you want to block certain sites based on its content then you will need to sign up for a free account. For – for SOHO network you can configure OpenDNS on your router and for a Windows Domain you can configure those as forwarders along with ISPs DNS…

OpenDNS’s website is located at OpenDNS