OpenDNS - What is OpenDNS and How You Can Use It ?

OpenDNS is a free DNS resolution service. It supply the following two recursive nameserver addresses for public use, mapped to the nearby operational server position by Anycast routing.

208.67.222.222 (resolver1.opendns.com)
208.67.220.220 (resolver2.opendns.com)

OpenDNS was set up in July 2006 by hacker/entrepreneur David Ulevitch. It received venture capital financial support from Minor Ventures, which is led by CNET founder Halsey Minor.

OpenDNS offering DNS resolution for customers and businesses as an option to using their Internet service provider’s DNS servers. By inserting company servers in strategic locations and employing a large cache of the domain names, DNS queries are normally processed much more quickly[2], in that way increasing page retrieval speed. DNS query results are occasionally cached by the local operating system and/or applications, so this speed increase may not be evident with every request, but only with requests that are not stored in a local cache.

While OpenDNS is presently a free service, people have complained about how the service hold failed requests. If a domain cannot be found, the service returns a search page with search results and promotion provided by Yahoo.

On December 3, 2007, OpenDNS began offering DNS-O-Matic, a free of charge service, to offer a process of sending dynamic DNS updates to several Dynamic DNS providers utilizing DynDNS’s update API.

Tags: Applications, Business, Internet