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[dns-wg] Slight Increase in DNS Resolvers Doing Priming Queries after .arpa Signing - Why?
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Emile Aben
emile.aben at ripe.net
Wed Apr 7 12:11:44 CEST 2010
[Apologies for duplicates] In the latest blog on RIPE Labs, we discuss priming queries to K-root: http://labs.ripe.net/content/slight-increase-dns-resolvers-doing-priming-queries-after-arpa-signing-why We have seen a slight increase in the number of sources that issue priming queries to K-root since 18 March, the day after the signed .arpa zone was rolled out. This increase is visible on three out of five global nodes and seems to be caused primarily by resolvers that are not EDNS capable. While this is not causing any significant operational strain on K-root, and we don't believe a significant number of clients have problems with DNS resolution, we still want to know what is going on. We plan to further characterise this (look at TTLs) and hopefully isolate some sources that caused this increase. If you have any insight on this, or have suggestions on what we should look into, please let us know. Best regards, Emile Aben Research Engineer RIPE NCC
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