qHss6ID2JSztUgr
qHss6ID2JSztUgr on Hacker News
Re:Engineer distributes resume via IPv6 traceroute
on Friday August 26, 2022 @02:38PM (#32611145)
> Host mail.jobs.at.poinsignon.org not found: 3(NXDOMAIN)
(A bit of a missed opportunity; the author should really set a AAAA record there IMHO)
There's no actual requirement that your PTR records resolve back to the same IP. Historically very little software bothered to check, and most of the Unix-y diagnostic software has never been updated to do so...