Word of the Day: DNS redirection

Word of the Day Daily updates on the latest technology terms |February 28, 2018

DNS redirection DNS redirection was the controversial practice of serving a Web page to a user that is different from either the one requested or one that might reasonably be expected. In the early days of the internet, an ISP would typically serve an ad-based page when the user mistyped a URL, rather than a 404 error message, In July 2009, Comcast announced it would test DNS redirection, under the name "Domain Name Helper Service," in Arizona, Colorado, New Mexico, Oregon, Texas, Utah, and Washington. Other ISPs that implemented DNS redirection include Verizon, Cox, Earthlink and Charter. The practice was generally not popular among consumers and is no longer a source of revenue for ISPs. DNS redirection differs from DNS poisoning, in which an attacker gains access to a server's DNS table and substitutes a rogue address for a valid one. Fake companies have been set up to sell billions of hijacked IP addresses. Fraud, forgery and identity theft are involved with these hijackings. The recent rise in DNS poisoning, also referred to as IP hijacking, can partially be attributed to hackers who find the WHOIS database an easy target. By making unauthorized changes to registration records, hackers have been able to hijack existing IP address ranges created before the American Registry for Internet Numbers' (ARIN's) inception in 1997. At that point, a worm, spyware, Web browser hijacking program, or other malware can be downloaded to the user's computer from the rogue location. Quote of the Day "DNS is a mission-critical service for enterprises, and it is also a gold mine of valuable data for protecting your enterprise." - Nick Lewis   Trending Terms cache poisoning DNS attack DNS Security Extensions CNAME MX record 404 status code   Learning Center How did OurMine hackers use DNS poisoning to attack WikiLeaks? A WikiLeaks attack was recently exposed by the hacking group OurMine. Nick Lewis shares how the hackers used DNS poisoning to take over the web address. Use PowerShell for help with DNS server management With assistance from PowerShell, the IT staff can save time by building scripts for DNS server management and modifications to DNS records. DNS functions remain vital, but must adapt as demands shift DNS functions remain vital. However, the proliferation of devices, especially those that are IPv6-only, present a challenge to this network protocol. Hospital network security: Recursive DNS lookups yield threat insight One health system uses recursive DNS lookups and deep insight into threat intelligence to ensure hospital network security. Don't let IPv6 and IoT question the purpose of DNS DNS challenges, from IPv6 to the complexities of IoT, must be overcome, since a smooth-functioning domain name system remains essential for networking. Writing for Business Although ISPs promote DNS redirection as a service to customers, customers typically think the ISPs have _______ motives. a. alterior b. ulterior Answer   Stay In Touch For feedback about any of our definitions or to suggest a new definition, please contact me at: mrouse@techtarget.com   Visit the Word of the Day Archives and catch up on what you've missed!   FOLLOW US About This E-Newsletter This e-newsletter is published by the TechTarget network. To unsubscribe from Whatis.com, click here. Please note, this will not affect any other subscriptions you have signed up for. TechTarget, Whatis, 275 Grove Street, Newton, MA 02466. Contact: webmaster@techtarget.com Copyright 2018 TechTarget. All rights reserved.