Reverse DNS

A reverse DNS (rDNS) maps a public IP address and a domain name. A reverse DNS lookup zone contains the attributes that instruct Cloud DNS to perform a Pointer (PTR) lookup against DNS servers to find the domain name mapped to the IPv4 or IPv6 addresses.

For more information about IPv6 configuration in the DCD, see IPv6 Configuration.

Prerequisites:

  • You need an IONOS Cloud account with API credentials configured with the appropriate permissions.

  • You must be a contract administrator, owner, or a user with Access and manage DNS privilege to create and manage PTR records. You can also set User privileges via the API.

  • Before creating a Reverse DNS record, it is recommended to create an A or AAAA record for the IP address you want to use for the reverse DNS record. For more information, see Create a DNS Record.

  • Sub-users can create Reverse DNS records for IPv4 addresses only if the user group they belong to has access to the concerned reserved IP block. For more information, see Add users to a group.

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