Domain Name System (DNS) Cookies (RFC7873)
Original Publication Date: 2016-May-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
D. Eastlake 3rd: AUTHOR [+2]
As with many core Internet protocols, the Domain Name System (DNS) was originally designed at a time when the Internet had only a small pool of trusted users. As the Internet has grown exponentially to a global information utility, the DNS has increasingly been subject to abuse.
Internet Engineering Task Force (IETF) D. Eastlake 3rd Request for Comments: 7873 Huawei Category: Standards Track M. Andrews ISSN: 2070-1721 ISC May 2016
Domain Name System (DNS) Cookies
DNS Cookies are a lightweight DNS transaction security mechanism that provides limited protection to DNS servers and clients against a variety of increasingly common denial-of-service and amplification/ forgery or cache poisoning attacks by off-path attackers. DNS Cookies are tolerant of NAT, NAT-PT (Network Address Translation - Protocol Translation), and anycast and can be incrementally deployed. (Since DNS Cookies are only returned to the IP address from which they were originally received, they cannot be used to generally track Internet users.)
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7873.
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RFC 7873 DNS Cookies May 2016
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RFC 7873 DNS Cookies ...