ip: An IPv4 addresses in dotted decimal notation.
pri: Priority of mail exchanger.
Lower numbers indicate greater priority.
target: FQDN of the mail exchanger.
See also dns_get_mx().
target: FQDN of location in DNS namespace to which
the record is aliased.
target: FQDN of the name server which is authoritative
for this hostname.
target: Location within the DNS namespace to which
this record points.
txt: Arbitrary string data associated with this record.
cpu: IANA number designating the CPU of the machine
referenced by this record.
os: IANA number designating the Operating System on
the machine referenced by this record.
See IANA's » Operating System
Names for the meaning of these values.
mname: FQDN of the machine from which the resource
rname: Email address of the administrative contain
for this domain.
serial: Serial # of this revision of the requested
refresh: Refresh interval (seconds) secondary name
servers should use when updating remote copies of this domain.
retry: Length of time (seconds) to wait after a
failed refresh before making a second attempt.
expire: Maximum length of time (seconds) a secondary
DNS server should retain remote copies of the zone data without a
successful refresh before discarding.
minimum-ttl: Minimum length of time (seconds) a
client can continue to use a DNS resolution before it should request
a new resolution from the server. Can be overridden by individual
ipv6: IPv6 address
|A6(PHP >= 5.1.0)
masklen: Length (in bits) to inherit from the target
specified by chain.
ipv6: Address for this specific record to merge with
chain: Parent record to merge with
pri: (Priority) lowest priorities should be used first.
weight: Ranking to weight which of commonly prioritized
targets should be chosen at random.
target and port: hostname and port
where the requested service can be found.
For additional information see: » RFC 2782
order and pref: Equivalent to
pri and weight above.
flags, services, regex,
and replacement: Parameters as defined by
» RFC 2915.