Developers Guide

10 Dell EMC SC Series and Active Directory Integration | CML1135
3.1.2 Reverse lookup zones and PTR records
A reverse lookup zone enables clients to use a known IP address during a name query and look up a
computer name based on its address. PTR records map an IP to a hostname, whereas a host record maps a
hostname to an IP. Reverse lookup zones are independent of the DNS installation and need to be manually
created.
Note: Without host and PTR records for the SC Series array, the domain join operation will fail while
configuring SC Series AD integration.
To create a reverse lookup zone:
1. Open a console session to the primary DNS server. Log in as Administrator.
2. To open DNS Manager, at the start screen, click Administrative Tools > DNS.
3. In DNS Manager, expand the domain controller, right-click Reverse Lookup Zones and select New
Zone.