Domain name system provided by Cisco using closed-source software
OpenDNS
Company type
DNS Resolution Service
Founded
1 November 2005 (18 years ago) (2005-11-01)[citation needed]
Founder
David Ulevitch (Founder & CEO) et al.
Headquarters
San Francisco, California
Number of employees
501–1,000[1]
Parent
Cisco (2015 (2015)–present)
ASN
36692
Website
www.opendns.com
OpenDNS is an American company providing Domain Name System (DNS) resolution services—with features such as phishing protection, optional content filtering, and DNS lookup in its DNS servers—and a cloud computing security product suite, Umbrella, designed to protect enterprise customers from malware, botnets, phishing, and targeted online attacks. The OpenDNS Global Network processes an estimated 100 billion DNS queries daily from 85 million users through 25 data centers worldwide.
On August 27, 2015, Cisco acquired OpenDNS for US$635 million in an all-cash transaction, plus retention-based incentives for OpenDNS. OpenDNS's business services were renamed Cisco Umbrella; home products retained the OpenDNS name. Cisco said that it intended to continue development of OpenDNS with its other cloud-based security products, and that it would continue its existing services.
Until June 2014, OpenDNS provided an ad-supported service and a paid advertisement-free service. The services are based on software proprietary to the company.
OpenDNS is an American company providing Domain Name System (DNS) resolution services—with features such as phishing protection, optional content filtering...
DNSCrypt was first implemented in production by OpenDNS in December 2011. There are several free and open source software implementations that additionally...
and loopback IP addresses: External public DNS servers (e.g. OpenDNS) can implement DNS filtering. Local system administrators can configure the organization's...
outside DNS requests. OpenDNS, owned by Cisco, is a similar popular service which does not alter NXDOMAIN responses. Google in April 2016 launched DNS-over-HTTPS...
founder and CEO of the enterprise security company OpenDNS (acquired by Cisco) and founder of EveryDNS (acquired by Dyn). In December, 2016, Ulevitch was...
videoconferencing, and energy management with leading products including Webex, OpenDNS, Jabber, Duo Security, Silicon One, and Jasper. Cisco Systems was founded...
Thumbtack, Notion, SnapLogic, Opendoor, Clubhouse, Stack Overflow, Bolt, OpenDNS, Yammer, and Clearview AI, with over 70 total exits and more than 10 Unicorn...
Name System (DNS) to associate numeric computer IP addresses with human-readable names. The top level of the domain name hierarchy, the DNS root, contains...
domains. Lawrence, Tom (2020-05-03). DNS Malware Filtering Compared: Quad9 VS Cloudflare VS DNS Filter VS OpenDNS. lawrencesystems.com. Lawrence Systems...
against the current tools in the market. DNS is the layer at which botnets control drones. In 2006, OpenDNS began offering a free service to prevent users...
Dancho. "How OpenDNS, PowerDNS and MaraDNS remained unaffected by the DNS cache poisoning vulnerability". ZDNet. Retrieved 2009-10-10. "MaraDNS - A security-aware...
DNSCurve, but instead protects the channel between OpenDNS and its users. No equally large authoritative DNS providers have yet deployed DNSCurve. DNSCurve...
launched in October 2006 by entrepreneur David Ulevitch as an offshoot of OpenDNS. The company offers a community-based phish verification system where users...
devotes an entire chapter to MaraDNS Danchev, Dancho. "How OpenDNS, PowerDNS and MaraDNS remained unaffected by the DNS cache poisoning vulnerability"....
DNS spoofing, also referred to as DNS cache poisoning, is a form of computer security hacking in which corrupt Domain Name System data is introduced into...
In computer networking, the multicast DNS (mDNS) protocol resolves hostnames to IP addresses within small networks that do not include a local name server...
PowerDNS is a DNS server program, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different...
DNS is a Domain Name System (DNS) service offered to Internet users worldwide by Google. It functions as a recursive name server. Google Public DNS was...
Server Network Public recursive name servers OpenDNS Google Public DNS CloudFlare Public DNS Zhong, Peng. "OpenNIC - Projects - PRISM Break". prism-break...
Knot DNS is an open-source authoritative-only server for the Domain Name System. It was created from scratch and is actively developed by CZ.NIC, the ...
several public DNS resolvers, the vast majority being members of the OpenNIC network, as well as virtual private network (VPN) services. OpenDNS (now a part...
easyDNS Technologies Inc. is a Canadian Internet service provider which supplies DNS and web hosting services and operates a mail service called EasyMail...
DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol. A goal of the method is to increase...
(SipHash 1-3) Rust (SipHash 1-3) Swift Operating systems Linux systemd OpenBSD OpenDNS The following programs use SipHash in other ways: Bitcoin for short...
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