[DNSOP] I-D Action: draft-ietf-dnsop-serve-stale-06.txt
internet-drafts@ietf.org Thu, 08 August 2019 22:06 UTC
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Subject: [DNSOP] I-D Action: draft-ietf-dnsop-serve-stale-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Domain Name System Operations WG of the IETF. Title : Serving Stale Data to Improve DNS Resiliency Authors : David C Lawrence Warren "Ace" Kumari Puneet Sood Filename : draft-ietf-dnsop-serve-stale-06.txt Pages : 12 Date : 2019-08-08 Abstract: This draft defines a method (serve-stale) for recursive resolvers to use stale DNS data to avoid outages when authoritative nameservers cannot be reached to refresh expired data. It updates the definition of TTL from [RFC1034], [RFC1035], and [RFC2181] to make it clear that data can be kept in the cache beyond the TTL expiry and used for responses when a refreshed answer is not readily available. One of the motivations for serve-stale is to make the DNS more resilient to DoS attacks, and thereby make them less attractive as an attack vector. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-dnsop-serve-stale/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-dnsop-serve-stale-06 https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-serve-stale-06 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-dnsop-serve-stale-06 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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