Overview of The Domain Name System
A domain name system server translates a human readable domain name (such as example.com) into a numerical IP address that is used to route communications between nodes. Normally if the server doesn't know a requested translation offhand it will ask another server, and the process continues recursively.
When a DNS server has received a non-authentic translation and caches it for performance optimization, it is considered poisoned, and it supplies the non-authentic data to clients. If a DNS server is poisoned, it may return an incorrect IP address, diverting traffic to another computer (often an attacker's).
Read more about this topic: DNS Spoofing
Famous quotes containing the words system and/or domain:
“It would be enough for me to have the system of a jury of twelve versus the system of one judge as a basis for preferring the U.S. to the Soviet Union.... I would prefer the country you can leave to the country you cannot.”
—Joseph Brodsky (b. 1940)
“Every sign is subject to the criteria of ideological evaluation.... The domain of ideology coincides with the domain of signs. They equate with one another. Wherever a sign is present, ideology is present, too. Everything ideological possesses semiotic value.”
—V.N. (Valintin Nikolaevic)