repeated 16 hour interval spike in authoritative PTR lookups
jm9386
jm9386 at att.com
Wed Jan 9 20:33:57 UTC 2019
also the vast majority - over 95% of the queries we are seeing are coming
from open resolvers on the Internet - distributed all over the world. It
seems awfully suspicious for resolvers all over the world to decide to query
PTR records for our ISP related in-addr.arpa space every 16 hours.
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