DEFEATING CACHE RESISTANT DOMAIN NAME SYSTEMS
First Claim
Patent Images
1. A domain name caching system, comprising:
- a receiver component that receives a domain name lookup request; and
a resolver component that returns information from a cache for a non-identical domain name in response to the request.
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Abstract
Domain name caching mechanisms are provided to address cache-defeating approaches. Domain name lookup requests are processed and cached information associated with a non-identical domain name returned in response. Cache-defeating behavior including nonce injection can be detected or inferred and employed to map domain name requests to previously cached information thereby exposing the benefits of caching.
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Citations
20 Claims
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1. A domain name caching system, comprising:
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a receiver component that receives a domain name lookup request; and a resolver component that returns information from a cache for a non-identical domain name in response to the request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A domain name caching method, comprising:
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receiving a domain name; identifying a non-identical domain name record in cache; and returning a cached IP address associated with the non-identical domain name. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A domain name caching system, comprising:
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means for caching a result of a domain name lookup; and means for serving the result in response to a subsequent lookup for an un-identical, nonce-bearing domain name. - View Dependent Claims (20)
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Specification