Configuring Resource Records
- Sri Raghu
DNS resource records provide information about objects and NIOS-X Servers. DNS servers use these records to respond to queries for NIOS-X Servers and objects.
There is a limit of 500 resource records of the same type and name within a single zone. Exceeding this limit is not rejected on the Infoblox Portal, but the on-premise DNS servers will refuse to load zones containing such records.
You can perform the following actions:
- Creating an AAAA Record
- Creating a CAA Record
- Creating a CNAME Record
- Creating a DNAME Record
- Creating an HTTPS Record
- Creating an MX Record
- Creating an NAPTR Record
- Creating an NS Record
- Creating a PTR Record
- Creating an SRV Record
- Creating an SVCB record
- Creating a TXT Record
- Creating a Generic Record
- Deleting a Resource Record
- Modifying Resource Records
- Creating an A Record
The following table describes the DNS record sources in Universal DDI, including combined sources.
| Record Source | Description | Record Types |
|---|---|---|
| Static | Record created manually in UI or by an API call. | All record types except SOA. |
| Dynamic | Record created automatically by a dynamic DNS update. | All record types except SOA. |
| System | Record created automatically upon name server assignment or zone creation event. | A, PTR, NS, SOA. |
| Static, System | A case when a record was created manually, and then, at some point, the zone was assigned to a name server, which resulted in the creation of a System record. | A, PTR, NS, SOA. |
| Dynamic, System | Record created through a dynamic DNS update, after which the zone was assigned to a name server and corresponding System record was created. | A, PTR, NS, SOA. |
You can see those in the Record Source column of the Resource Records Viewer for a specific zone.
Updates to a Static, Dynamic, or System record over API or dynamic DNS do not change the initial record source.
System and combined records have some limitations that include:
- You cannot enable or disable System records.
- You cannot delete System records.
- You cannot modify the record data (RDATA).
Record data fields that are domain names (such as "Canonical Name" of CNAME or "Domain Name" of PTR) can be either relative (to the zone name) or absolute. The value of those fields must therefore be explicitly ended with a period if they are intended to be absolute. Otherwise, the zone name will be appended to the user-supplied name to be absolute.
For more information about Dynamic DNS Updates, see Updates and Enabling DDNS for IPv4 Clients.