The Net_DNS_RR class provides methods of parsing resource records returned by a nameserver, creation of resource record objects to be sent to a nameserver, and the ability to access each component of an RR as an object property.
Each resource record object MUST contain the following properties:
name - The DNS name of the RR
type - The RR type
class - The RR class (normally IN)
ttl - The RR time to live
rdlength - The amount of data (in bytes) of the rdata section
rdata - The data (uncompressed) of the right hand side of the RR
If type is a supported RR type, it will automatically be decompressed and/or decoded into its appropriate property values. The values inside of an RR object will vary based on the type of RR.
Supported RR types:
A
string address - IPv4 style address
AAAA
string address - IPv6 style address
CNAME
string cname - The canonical name of the queried host
HINFO
string cpu - The host CPU type
string os - Type host operating system
MX
integer preference - The MX preference (lower takes priority
string exchange - The name of the mail exchange host
NAPTR
unknown order - unknown
unknown preference - unknown
unknown flags - unknown
unknown services - unknown
unknown regex - unknown
unknown replacement - unknown
NS
string nsdname - The name of the NS record nameserver
PTR
string ptrdname - The name for the queried IP address
SOA
string mname - Master nameserver hostname as specified in the SOA record - not neccessarily accurate
string rname - Email address of the person responsible for the zone - not neccessarily accurate
string serial - The serial number (version number) of the retrieved zone
string refresh - The length of time before the zone should be refresed
string retry - The length of time between retries for slave servers to refresh the zone
string expire - The length of time before slave servers should consider the data invalid without refreshing the zone data.
string minimum - The default TTL for RRs inside of the zone that are not otherwise specified.
SRV
unknown preference - unknown
unknown weight - unknown
unknown port - unknown
unknown target - unknown
TSIG
integer time_signed - The time the signature has was created
integer fudge - The time offset that is acceptable between the client and the server
integer mac_size - The size of the following signature data
string/binary mac - The data containing the has sent by the client/server
integer original_id - The ID sent to or received from the server identifying this query.
integer error - The value of the error calculating or verifying the signature.
integer other_len - The amount of data (in bytes) additional to the signature
string other_data - Additional data required by the nameserver for the signature.
string key - The key shared by the client and the server to validate authorization.
TXT
string text - The text defined in the record