Ancestors

Written by GrumpSec Spottycat on 2025-01-14 at 05:32

DNS crimes time. What do people get when they resolve cname.fyi (and with what tool)

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Written by GrumpSec Spottycat on 2025-01-14 at 08:37

Sooooo it turns out when people say "You can't CNAME the apex of a domain, that won't work/that's illegal!"

You should be able to email dnscrimes at cname.fyi as well as resolve foo.cname.fyi and there's also a lower priority MX record for mail.cname.fyi that is CNAMEed (also bad) #dnscrimes

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Toot

Written by GrumpSec Spottycat on 2025-01-14 at 23:25

Hmmmm, max DNS TTL is like 68 years but implementations can drop caches for records sooner if they want...

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Descendants