OpenDNS is a free ad-supported DNS (Domain Name System) resolution service. An opt-in service, OpenDNS offers faster resolution and advanced features, such as misspelling correction, phishing protection, and optional content filtering. -
Wikipedia
In short OpenDNS is an important tool for your internet security and to gain more control over your internet experience. Installing OpenDNS for Ubuntu is easy but the guides are scattered all over the place and the OpenDNS site doesnt have all the necessary info. So here's a concise and accurate procedure of activating it on your Ubuntu desktop.
Step 1:
Sign up. Go to
OpenDNS site and sign up for a free/paid account.
Step 3:
Setting up DDClient. This is where users get stuck the most since there are no proper guides regarding this. However Ubuntuforums has a detailed solution for this. Although its a bit lengthy, I would strongly suggest that you go through it and configure your settings for ddclient. The link is here:
http://ubuntuforums.org/showthread.php?t=1264710
Finally, enable the stats from your OpenDNS settings page and you're done. If you want to edit what you want/dont want to block, you can change it from the dashboard. Trust me, all this hard work is totally worth it.