Configure DNS resource records
You configure resource records on the Citrix® ADC appliance when you configure the appliance as an ADNS server for a zone. You can also configure resource records on the appliance if the resource records belong to a zone for which the appliance is a DNS proxy server. On the appliance, you can configure the following record types:
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Service records
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AAAA records
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Address records
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Mail Exchange records
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Name Server records
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Canonical records
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Pointer records
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NAPTR records
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Start of Authority records
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Text records
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Certificate Authority Authorization (CAA) records
The following table lists the record types that you can configure for a domain name record on the NetScaler appliance. For example, you can configure a maximum of 25 IP addresses for one record.
Table 1. Record Type and Number Configurable
| Record Type | Number of Records |
|---|---|
| Address (A) | 25 |
| IPv6 (AAAA) | 5 |
| Mail exchange (MX) | 12 |
| Name server (NS) | 16 |
| Service (SRV) | 8 |
| Pointer (PTR) | 20 |
| Canonical name (CNAME) | 1 |
| Start of Authority (SOA) | 1 |
| Text (TXT) | 20 |
| Naming Authority Pointer (NAPTR) | 20 |
| Certificate Authority Authorization (CAA) | 20 |
Note:
The maximum number of IP addresses for a specific host name is 25. However, the number of different address records can be more than 25.