In DDI orchestrator, you can create a reverse zone for a particular range (both IPv4 and IPv6) or DHCP scope. A reverse zone allows you to map a known IP address to a domain. Reverse zone lookups are often used by email servers to validate that an email came from a valid server.
To create a reverse zone:
- In the list on the Networks tab of the IPAM page, select the range or DHCP scope for which you want to create a reverse zone.
- Use either the Action or ellipses in the row to select Create reverse zone.
- In the dialog, select a View for the new zone. Then select Next.
- In the Primary service step, select a primary DNS server on
which to create the zone.
- (Optional) In the Redundancy step, select the secondary servers on which to create a read-only copy of the zone.
- (Optional) In the Custom properties step, set custom property values for the zone, if needed.
- (Optional) In the Folders step, select a folder from the list to add the zone to one of the existing folders in DDI orchestrator.
- In the Summary step, review the zone configuration. The name of the reverse zone includes the suffix addr.arpa.
- If you want to update the reverse records immediately, check the Update reverse records after creating checkbox.
- Select Create.
After the reverse zone is created, you can view and manage it from the DNS page.
Whenever a reverse lookup occurs, a PTR record is created that points to the domain name for the IP address. In DDI orchestrator, you can run a task to update the DNS records in the corresponding reverse zone.