Basic HTML version of Foils prepared July 6 99

Foil 80 DNS Cache Poisoning (1)

From Security Infrastructure fo Electronic Commerce and Internet CPS714 Computational Science Information Track -- June 2 and June 7 99. by Roman Markowski
DNS - Domain Name Service - critical component of the Internet; maps names to IP addresses; mail exchanger
Clients use resolver to access DNS servers
BIND - Berkeley Internet Name Domain - most common DNS
DNS servers query each other to resolve names (QueryID)
To lower traffic requirements, DNS servers will cache answers
Client
Local
DNS
Company
DNS
COM
DNS
Root
DNS
www.company.com

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Page produced by wwwfoil on Tue Jul 6 1999