Performance Issues - PTR Records

Paul Ebersman list-nanog2 at dragon.net
Sat Nov 5 02:44:42 UTC 2011


tim> If PTR exists in zone file, serve it.  Else, synthesize generic
tim> reverse.  Jobsagoodun.

If all we're doing is lying with some generic answer that we hack our
server to produce, why are we bothering?

At that point, you're not proving clue. You're proving you at least
bought a solution from someone with a clue...

My contention is that (at least for end hosts), PTR records are mostly
pointless and just overhead for DNS servers.




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