draft-ietf-dnsop-bad-dns-res-05.txt

非常好的dns解析软件

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4.  IANA considerations

   There are no new IANA considerations introduced by this memo.
















































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5.  Security considerations

   The iterative resolver misbehavior discussed in this document exposes
   the root and TLD name servers to increased risk of both intentional
   and unintentional denial of service attacks.

   We believe that implementation of the recommendations offered in this
   document will reduce the amount of unnecessary traffic seen at root
   and TLD name servers, thus reducing the opportunity for an attacker
   to use such queries to his or her advantage.









































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6.  Internationalization considerations

   There are no new internationalization considerations introduced by
   this memo.

7.  Informative References

   [1]  Bradner, S., "Key words for use in RFCs to Indicate Requirement
        Levels", BCP 14, RFC 2119, March 1997.

   [2]  Mockapetris, P., "Domain names - concepts and facilities",
        STD 13, RFC 1034, November 1987.

   [3]  Elz, R. and R. Bush, "Clarifications to the DNS Specification",
        RFC 2181, July 1997.

   [4]  Andrews, M., "Negative Caching of DNS Queries (DNS NCACHE)",
        RFC 2308, March 1998.

   [5]  Morishita, Y. and T. Jinmei, "Common Misbehavior Against DNS
        Queries for IPv6 Addresses", RFC 4074, May 2005.

   [6]  Vixie, P., Thomson, S., Rekhter, Y., and J. Bound, "Dynamic
        Updates in the Domain Name System (DNS UPDATE)", RFC 2136,
        April 1997.

   [7]  Rekhter, Y., Moskowitz, R., Karrenberg, D., Groot, G., and E.
        Lear, "Address Allocation for Private Internets", BCP 5,
        RFC 1918, February 1996.

   [8]  <http://www.as112.net>




















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Authors' Addresses

   Matt Larson
   VeriSign, Inc.
   21345 Ridgetop Circle
   Dulles, VA  20166-6503
   USA

   Email: [e-mail]


   Piet Barber
   VeriSign, Inc.
   21345 Ridgetop Circle
   Dulles, VA  20166-6503
   USA

   Email: [e-mail]

































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