change in reverse dns lookup behavior

Stafford, Paige L. staffordp1 at ornl.gov
Fri May 13 14:50:56 UTC 2005


210.146.35.35 stepped through our entire 128.219/16 address space
yesterday asking for reverse DNS lookups.  It started at 16:06 and ended
at 20:34.  This is the equivalent of a zone transfer.=20

I'm looking for a clever way of stopping this.  And if we can't, we want
to at least slow it down.  Creating dummy records for the unused IP
addresses has not been effective. =20

*Any* ideas you have would be most welcome.


Paige Stafford
DNS administrator, ORNL
staffordp1 at ornl.gov



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