We all like free stuff. Add a lot of functionality and OpenDNS is a must have protection tool for everyone. Before we continue with the review, let's explain how DNS actually works. DNS stands for Domain Name System and everyone connected to the Internet uses it every day. It is invisible service that translates names to IP addresses. That means it translates something we understand to something computers understand. Let's say you want to connect to "http://www.bbc.co.uk" and DNS returns the IP address that your browser can connect to and download the content.

DNS is provided to you usually by your ISP (Internet Service Provider) as a part of your Internet connection. Although DNS is largely invisible to you, it is very powerful service, which can be used for both good or bad. If the DNS server of your ISP is hacked into, it may return a different IP address for "http://www.bbc.co.uk". Your browser than connects to malicious site instead and your computer may get infected with a virus.

OpenDNS is here to help. Rather than relying on the DNS service from your
ISP, you can easily configure your computer or router and get the warm feeling your are protected. OpenDNS partners with Kaspersky to get the list of infected and malicious websites. You are then automatically protected when trying to go to these websites.  

When we reviewed the service we tested both home network and small business network setup. Both were rather easy to configure following OpenDNS instructions. You can even create an account with OpenDNS and configure the level of protection. For example you may want to limit access to inappropriate content, like adult content, for your kids.

If you use laptop or netbook you can configure DNS directly into your PC and be protected even when travelling. 

Overall we advice everyone to go to "http://www.opendns.com" and try this free service.

It is nice add-on to your antivirus.