Patent ID: 7680955

Claim:
A self-cleansing intrusion tolerance-domain name systems (SCIT-DNS) system comprising: a. at least three DNS servers; b. at least four storage systems accessible by said at least three DNS servers, said at least four storage systems including at least three online storage systems and at least one offline storage system; c. a communications link connecting: i. said at least three DNS servers with at least three of said at least four storage systems; and ii. at least two of said at least three DNS servers with a local area network, a message transfer mechanism, and a self-cleansing mechanism, said local area network capable of connecting said at least two of said at least three DNS servers to an external network; and d. said message transfer mechanism capable of rotating said at least three DNS servers into a plurality of roles, said plurality of roles including at least three of the following: i. a primary role; ii. a secondary role; iii. a designated role; and iv. a self-cleansing role; and e. said self-cleansing mechanism capable of performing said self-cleansing role on at least one of the DNS servers at a set time interval by assuming said at least one of the DNS servers as a failed server, whether or not any intrusion has occurred.