Comments on: reverse lookup zone http://itknowledgeexchange.techtarget.com/itanswers/reverse-lookup-zone/ Mon, 09 Nov 2009 09:23:32 +0000 http://wordpress.org/?v=2.6.2 By: reverselookup http://itknowledgeexchange.techtarget.com/itanswers/reverse-lookup-zone/#comment-55056 reverselookup Thu, 24 Jul 2008 20:45:55 +0000 #comment-55056 [...] [...] [...] [...]

]]> By: CosmoC http://itknowledgeexchange.techtarget.com/itanswers/reverse-lookup-zone/#comment-54472 CosmoC Tue, 08 Jul 2008 19:30:12 +0000 #comment-54472 The reverse lookup zone was originally used for network troubleshooting (ping, traceroute, dig, etc). For external DNS (especially mail servers) reverse lookups are essential. Most ISP/Hosting services rely on reverse lookups for anti-spam techniques. Active Directory does not require reverse lookups but without them clients may not be able to fully resolve host names. Some will argue that adding reverse lookups (PTR records) to an Active Directory Integrated zone will slow your DNS query’s. I have not found this to be true. The reverse lookup zone was originally used for network troubleshooting (ping, traceroute, dig, etc). For external DNS (especially mail servers) reverse lookups are essential. Most ISP/Hosting services rely on reverse lookups for anti-spam techniques.

Active Directory does not require reverse lookups but without them clients may not be able to fully resolve host names. Some will argue that adding reverse lookups (PTR records) to an Active Directory Integrated zone will slow your DNS query’s. I have not found this to be true.

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