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#10 |
a.k.a. Sparky
Join Date: Sep 2004
Location: West Palm Beach, FL, USA
Posts: 2,396
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Reverse DNS Lookups are used to prevent spoofing attacks on hostname based authentication. Disabling that is a matter between you and your host.
Short of some very specific cases, we haven't run Reverse DNS lookups on production sites due to the slight performance hit the first time a new surfer hits a site.
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