Hi, In the light of the recent discussions on TTL violations and server stale here on the list, I decided to take a look on how often resolvers perform TTL violations in the wild.
To do that, I used almost 10K Ripe Atlas probes. You can find a report and datasets at: https://labs.ripe.net/Members/giovane_moura/dns-ttl-violations-in-the-wild-with-ripe-atlas-2 Now, what was more scary were the violations that *increased* the TTL of of RR some more than 10x. That may put users at risk of service domains that may have been already taken down. /giovane ps: related thread on oarc list at : https://lists.dns-oarc.net/pipermail/dns-operations/2017-November/017039.html _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
