Reverse Lookup Zones

A reverse lookup zone performs the exact opposite operation as a forward lookup zone. IP addresses are matched up with a common name in a reverse lookup zone. This is similar to knowing a phone number but not knowing the name associated with it. Reverse lookup zones are usually manually created and do not always exist in every implementation. Creating a new zone using the Configure a DNS Server Wizard, as in the example earlier in this chapter, can automatically create a reverse lookup zone. Reverse lookup zones are primarily populated with PTR records, which serve to point the reverse lookup query to the appropriate name.

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