Class for DNS Pointer (PTR) resource records.
Pointer records are the opposite of A and AAAA RRs and are used in Reverse Map zone files to map an IP address (IPv4 or IPv6) to a host name.
Alias for ptrdname
Gets the PTR value.
Returns a String.
Gets the standardized value for this record, represented by the value of ptrdname.
[Validate]