DNS Resource Records
A |
a host address. In the IN class, this is a 32-bit IP address. Described in RFC 1035. |
AAAA |
IPv6 address. Described in RFC 1886. |
A6 |
IPv6 address. This can be a partial address (a suffix) and an indirection to the name where the rest of the address (the prefix) can be found. Experimental. Described in RFC 2874. |
AFSDB |
location of AFS database servers. Experimental. Described in RFC 1183. |
APL |
address prefix list. Experimental. Described in RFC 3123. |
CERT |
holds a digital certificate. Described in RFC 2538. |
CNAME |
identifies the canonical name of an alias. Described in RFC 1035. |
DNAME |
Replaces the domain name specified with another name to be looked up, effectively aliasing an entire subtree of the domain name space rather than a single record as in the case of the CNAME RR. Described in RFC 2672. |
GPOS |
Specifies the global position. Superseded by LOC. |
HINFO |
identifies the CPU and OS used by a host. Described in RFC 1035. |
ISDN |
representation of ISDN addresses. Experimental. Described in RFC 1183. |
KEY |
stores a public key associated with a DNS name. Described in RFC 2535. |
KX |
identifies a key exchanger for this DNS name. Described in RFC 2230. |
LOC |
for storing GPS info. Described in RFC 1876. Experimental. |
MX |
identifies a mail exchange for the domain. a 16 bit preference value (lower is better) followed by the host name of the mail exchange. Described in RFC 974, RFC 1035. |
NAPTR |
name authority pointer. Described in RFC 2915. |
NSAP |
a network service access point. Described in RFC 1706. |
NS |
the authoritative name server for the domain. Described in RFC 1035. |
NXT |
used in DNSSEC to securely indicate that RRs with an owner name in a certain name interval do not exist in a zone and indicate what RR types are present for an existing name. Described in RFC 2535. |
PTR |
a pointer to another part of the domain name space. Described in RFC 1035. |
PX |
provides mappings between RFC 822 and X.400 addresses. Described in RFC 2163. |
RP |
information on persons responsible for the domain. Experimental. Described in RFC 1183. |
RT |
route-through binding for hosts that do not have their own direct wide area network addresses. Experimental. Described in RFC 1183. |
SIG |
("signature") contains data authenticated in the secure DNS. Described in RFC 2535. |
SOA |
identifies the start of a zone of authority. Described in RFC 1035. |
SRV |
information about well known network services (replaces WKS). Described in RFC 2782. |
TXT |
text records. Described in RFC 1035. |
WKS |
information about which well known network services, such as SMTP, that a domain supports. Historical. Superseded by SRV. |
X25 |
representation of X.25 network addresses. Experimental. Described in RFC 1183. |