OpenDNS

This article describes the commercial internet service provider. For the alternative Network Information Center (NIC) with DNS services see OpenNIC .

This article was due to content flaws on the quality assurance side of the computer science editorial added. This is done in order to bring the quality of the articles from the subject area of ​​computer science to an acceptable level. Help to eliminate the shortcomings in this article and take part in the discussion !  ( + ) Reason: Very outdated - taken over by Cisco since 2015 - Aruck ( discussion ) 11:05 am , Jan. 23, 2020 (CET) History revised, offers & servers still to be done - Mhupfauer ( Discussion ) 18:58, Apr. 4, 2020 (CEST)

OpenDNS
legal form	Cisco brand
founding	November 1, 2005
Seat	San Francisco , California , United States
management	David Ulevitch
Number of employees	501-1000
Branch	Internet
Website	www.opendns.com

OpenDNS is an American Internet service provider that extends the Domain Name System (DNS) by filtering content .

history

OpenDNS was founded in July 2006 by hacker and entrepreneur David Ulevitch . The service received $ 2 million in initial funding from Minor Ventures, a company led by CNET founder Halsey Minor .

On July 10, 2006, Digg , Slashdot and Wired reported on OpenDNS. On 2 October 2006 OpenDNS launched the project PhishTank , a collaborative anti- phishing - database . That same year, OpenDNS began the programming of DynDNS to use for the service DNS-O-Matic. This allows users to announce their dynamic IP address to several dynamic DNS providers at the same time.

On November 5, 2008, Nand Mulchandani left his previous position as head of security at VMware and replaced Ulevitch as CEO, who then took over the technical management in the position of CTO . In December 2009 Ulevitch took over the CEO position again. On October 21, 2009 it was announced that there will be three versions with immediate effect: Basic (free), Deluxe and Enterprise.

Sequoia Capital and Greylock Partners acquired the majority of the shares in Halsey Minor in July 2009. In cooperation with DAG Ventures, the remaining shares of Minor were bought in early 2010. With the "FamilyShield" service presented in June 2010, OpenDNS offered its customers the option of blocking pornographic content. In February 2012, Dan Hubbard joined OpenDNS as Websense CTO, where he assumed the same position. In May 2014, various investors raised over 35 million US dollars in new capital, including Cisco Systems, which took over the company in full in August 2015.

deals

OpenDNS offers DNS queries (resolution of DNS names) for individuals and companies. This represents an alternative to using the DNS server of your own Internet service provider. On the other hand, the company offers a phishing filter and correction of input errors. OpenDNS collects a list of questionable sites and blocks access to them.

With the PhishTank service, users can report new phishing pages or revise reports on older pages.

OpenDNS also wants to offer special services. This includes so-called shortcuts ("abbreviations"). This allows the user to map short names to a domain name. As an example, the name “mail” is given for the address “mail.yahoo.com”.

server

OpenDNS provides recursive name servers at the following addresses, which are routed to the nearest server via anycast :

IPv4

• 208.67.222.222 (resolver1.opendns.com)
• 208.67.220.220 (resolver2.opendns.com)
• 208.67.222.220 (resolver3.opendns.com)
• 208.67.220.222 (resolver4.opendns.com)

IPv6

• 2620: 0: ccc :: 2
• 2620: 0: ccd :: 2

criticism

The company was able to generate revenue as soon as a domain name was entered incorrectly. In this case, the user was redirected to a separate search page on which advertisements were displayed. On June 6, 2014, the company's own search page including advertising was switched off, but the integrated protection against phishing and malware attacks remains.

This behavior was similar to AOL -Search of Alice and the Site Finder from VeriSign , which at that time was heavily criticized. OpenDNS takes the view that this is not comparable, since the user can voluntarily choose these services and forwarding can be switched off via the OpenDNS control panel .

See also

• Google Public DNS
• Quad9

Web links

• Official website of OpenDNS
• FAQ about the takeover of OpenDNS by Cisco

Individual evidence

1. ↑ OpenDNS LinkedIn. Retrieved April 4, 2020 (American English). 
2. ↑ About OpenDNS - Network Security for Enterprise. Retrieved April 4, 2020 (American English). 
3. ↑ Series A - OpenDNS. crunchbase, accessed April 4, 2020 . 
4. ^ New (?) Anti-Fraud DNS service - Slashdot. Retrieved April 4, 2020 . 
5. ↑ WIRED Staff: Site Lookup Service Foils Fraud . In: Wired . July 10, 2006, ISSN  1059-1028 ( wired.com [accessed April 4, 2020]).
6. ^ Friends of OpenDNS, meet PhishTank. October 2, 2006, Retrieved April 4, 2020 (American English). 
7. ^ Dan Frommer: OpenDNS Founder David Ulevitch Takes Back Reins As CEO. Retrieved April 4, 2020 . 
8. ↑ OpenDNS Deluxe and OpenDNS Enterprise have arrived .
9. ↑ Sequoia, Greylock Take Stake In OpenDNS. In: TechCrunch. Retrieved April 4, 2020 (American English). 
10. ↑ Dan Hubbard. July 2, 2019, Retrieved April 4, 2020 (American English). 
11. ^ Dan Hubbard: Dan Hubbard - LinkedIn. In: LinkedIn. Retrieved April 4, 2020 . 
12. ↑ Cisco OpenDNS. Retrieved February 12, 2020 (American English). 
13. ↑ www.opendns.com/support/article/197 .
14. ↑ http://www.opendns.com/no-more-ads/