# dnsextlang rrtype descriptions
# version 1.0
A:1:I a host address [RFC1035]
   A:addr IPv4 address

NS:2:A an authoritative name server [RFC1035]
   N[C]:host Host name

MD:3:AO a mail destination (OBSOLETE - use MX) [RFC1035]
   N[C]:host Host name

MF:4:AO a mail forwarder (OBSOLETE - use MX) [RFC1035]
   N[C]:host Host name

CNAME:5:A the canonical name for an alias [RFC1035]
   N[C]:host Host name

SOA:6:A marks the start of a zone of authority [RFC1035]
   N[C]:primary Primary server name
   N[A]:mailbox Responsible mailbox
   I4:serial Serial number
   I4:refresh Refresh time (seconds)
   I4:retry Retry time (seconds)
   I4:expire Expire time (seconds)
   I4:minimum Minium time (seconds)

MB:7:AE a mailbox domain name (EXPERIMENTAL) [RFC1035]
   N[C]:host Host name

MG:8:AE a mail group member (EXPERIMENTAL) [RFC1035]
   N[A]:mailbox Mailbox name

MR:9:AE a mail rename domain name (EXPERIMENTAL) [RFC1035]
   N[A]:mailbox Mailbox name

NULL:10:AE a null RR (EXPERIMENTAL) [RFC1035]

WKS:11:I a well known service description [RFC1035]
   A:address IPv4 address
   I1:protocol Protocol number
   Z[WKS]:bitmap Bit Map

PTR:12:A a domain name pointer [RFC1035]
   N[C]:host Host name

HINFO:13:A host information [RFC1035]
   S:cpu CPU type
   S:os Operating system

MINFO:14:A mailbox or mail list information [RFC1035]
   N[A]:respbox Responsible mailbox
   N[A]:errbox Error mailbox

MX:15:A mail exchange [RFC1035]
   I2:priority Priority (lower values are higher priority)
   N[C]:hostname Host name

TXT:16:A text strings [RFC1035]
   S[M]:text Strings

RP:17:A for Responsible Person [RFC1183]
   N[A]:mailbox Mailbox
   N:text Text location

AFSDB:18:A for AFS Data Base location [RFC1183][RFC5864]
    I2:subtype Subtype
    N:hostname Hostname

X25:19:A for X.25 PSDN address [RFC1183]
   S:address PSDN address

ISDN:20:A for ISDN address [RFC1183]
   S[M]:address ISDN address, and optional subaddress

RT:21:A for Route Through [RFC1183]
   I2:preference Preference
   N:hostname Intermediate host

NSAP:22:I for NSAP address, NSAP style A record [RFC1706]
   Z[NSAP]:address NSAP Address 

NSAP-PTR:23:I for domain name pointer, NSAP style [RFC1348][RFC1637][RFC1706]
   N:hostname Host name

SIG:24:A for security signature [RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2931][RFC3110][RFC3008]
   I2:sigtype Type covered
   I1:algorithm Algorithm
   I1:labels Labels
   I4:ttl Original TTL
   T:expires Signature expiration time
   T:signed Time signed
   I2:footprint Key footprint
   N[C]:name Signer's name
   B64:signature Signature data

KEY:25:A for security key [RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2539][RFC3008][RFC3110]
   I2:flags Flags
   I1:protocol Protocol
   I1:algorithm Algorithm
   B64:data Key data

PX:26:I X.400 mail mapping information [RFC2163]
   I2:pref Preference
   N:idomain Internet mail domain
   N:xdomain X.400 mail domain

GPOS:27:A Geographical Position [RFC1712]
   S:longitude Longitude (decimal degrees)
   S:latitude Latitude (decimal degrees)
   S:altitude Altitude (meters)

AAAA:28:I IP6 Address [RFC3596]
   AAAA:address Address

LOC:29:A Location Information [RFC1876]
   I1:version Version
   I1:sphere Sphere size
   I2:hprecision Horiz precision
   I2:vprecision Vert precision
   I4:latitude Latitude (offset milliseconds)
   I4:longitude Longitude (offset milliseconds)
   I4:altitude Altitude (offset cm)

NXT:30:A Next Domain (OBSOLETE) [RFC3755][RFC2535]
   N[C]:next Domain
   Z[NXT]:rrtypes Bitmap of rrtypes

#EID:31:A Endpoint Identifier [Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt]

#NIMLOC:32:A Nimrod Locator [1][Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt]

SRV:33:I Server Selection [1][RFC2782]
   I2:priority Priority
   I2:weight Weight
   I2:port Port
   N:target Target host name

#ATMA:34:A ATM Address 

NAPTR:35:I Naming Authority Pointer [RFC2915][RFC2168][RFC3403]
   I2:order Order
   I2:pref Preference
   S:flags Flags
   S:services Services
   S:regex Regular expression
   N:replacement Replacement

KX:36:I Key Exchanger [RFC2230]
   I2:pref Preference
   N:exchanger Exchanger

CERT:37:A CERT [RFC4398]
   I2[PKIX=1,SPKI=2,PGP=2,IPKIX=4,ISPKI=5,IPGP=6,ACPKIX=7,IACPKIX=8,URI=253,OID=254]:type Type
   I2:tag Key tag
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   B64:certificate Certificate or CRL

A6:38:A A6 (OBSOLETE - use AAAA) [RFC3226][RFC2874][RFC6563]
   Z[A6P]:preflen Prefix length
   Z[A6S]:suffix Address suffix
   N:prefname Prefix name

DNAME:39:A DNAME [RFC6672]
   N:source Source name

#SINK:40:A SINK [Donald_E_Eastlake][http://tools.ietf.org/html/draft-eastlake-kitchen-sink]

#OPT:41:A OPT [RFC6891][RFC3225]

APL:42:I APL [RFC3123]
   Z[APL]:prefixes Prefixes

DS:43:A Delegation Signer [RFC4034][RFC3658]
   I2:keytag Key tag
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,DSA-NSEC-SHA1=6,RSASHA1-NSEC3-SHA1=7,RSASHA256=8,RSASHA512=10,ECC-GOST=12,ECDSAP256SHA256=13,ECDSAP384SHA384=14,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   I1[SHA-1=1,SHA-256=2,GOST=3,SHA-384=4]:digtype Digest type
   X:digest Digest

SSHFP:44:A SSH Key Fingerprint [RFC4255]
  I1:algorithm Algorithm
  I1:ftype Fingerprint type
  X:fingerprint Fingerprint

IPSECKEY:45:I IPSECKEY [RFC4025]
   I1:prec Precedence
   I1:gtype Gateway type
   I1:algorithm Algorithm
   Z[IPSECKEY]:gateway Gateway
   B64:key Public key

RRSIG:46:A RRSIG [RFC4034][RFC3755]
   R:rrtype Type covered (Type mnemonic)
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   I1:labels Labels
   I4:origttl Original TTL
   T:expire Signature expiration (timestamp)
   T:inception Signature inception (timestamp)
   I2:keytag Key tag
   N:signer Signer's name
   B64:signature Signature

NSEC:47:A NSEC [RFC4034][RFC3755]
   N:next Next domain name
   R[L]:types Type bitmaps (as window blocks)

DNSKEY:48:A DNSKEY [RFC4034][RFC3755]
   I2:flags Flags
   I1:protocol Protocol (must be 3)
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   B64:publickey Public key

DHCID:49:I DHCID [RFC4701]
   B64:dhcpinfo DHCP information

NSEC3:50:A NSEC3 [RFC5155]
   I1[SHA-1=1]:algorithm Hash algorithm
   I1[OPTOUT=1]:flags Flags
   I2:iterations Iterations
   X[C]:salt Salt
   B32:next Next hashed owner
   R[L]:types Type bitmaps (as window blocks)

NSEC3PARAM:51:A NSEC3PARAM [RFC5155]
   I1[SHA-1=1]:algorithm Hash algorithm
   I1[OPTOUT=1]:flags Flags
   I2:iterations Iterations
   X[C]:salt Salt

TLSA:52:A TLSA [RFC6698]
   I1:usage Certificate usage
   I1:selector Certificate selector
   I1:mtype Matching Type
   X:cert Certificate association data

SMIMEA:53:A S/MIME cert association [draft-ietf-dane-smime]
   I1:usage Certificate usage
   I1:selector Certificate selector
   I1:mtype Matching Type
   X:cert Certificate association data

HIP:55:A Host Identity Protocol [RFC-ietf-hip-rfc5205-bis-10]
   I1:pkalg PK algorithm
   Z[HIPHIT]:hit HIT
   Z[HIPPK]:pubkey Public Key
   N[O]:servers Rendezvous servers

#NINFO:56:A NINFO [Jim_Reid]

#RKEY:57:A RKEY [Jim_Reid]

#TALINK:58:A Trust Anchor LINK [Wouter_Wijngaards]

CDS:59:A Child DS [RFC7344]
   I2:keytag Key tag
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,DSA-NSEC-SHA1=6,RSASHA1-NSEC3-SHA1=7,RSASHA256=8,RSASHA512=10,ECC-GOST=12,ECDSAP256SHA256=13,ECDSAP384SHA384=14,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   I1[SHA-1=1,SHA-256=2,GOST=3,SHA-384=4]:digtype Digest type
   X:digest Digest

CDNSKEY:60:A DNSKEY(s) the Child wants reflected in DS [RFC7344]
   I2:flags Flags
   I1:protocol Protocol (must be 3)
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   B64:publickey Public key

OPENPGPKEY:61:A OpenPGP Key [RFC7929]
   B64:key PGP key

CSYNC:62:A Child-To-Parent Synchronization [RFC7477]
   I4:serial SOA serial
   I2:flags Flags
   R[L]:Types

SPF:99:A  [RFC7208]
  S[M]:text SPF data

NID:104:A  [RFC6742]
   I2:preference Preference
   AA:nodeid Node ID

L32:105:A  [RFC6742]
   I2:preference Preference
   A:locator Locator32

L64:106:A  [RFC6742]
   I2:preference Preference
   AA:locator Locator64

LP:107:A  [RFC6742]
   I2:preference Preference
   N:pointer Pointer

EUI48:108:A an EUI-48 address [RFC7043]
   X6:address Address (digit pairs separated by hyphens)

EUI64:109:A an EUI-64 address [RFC7043]
   X8:address Address (digit pairs separated by hyphens)

# dynamically generated:A, does not appear in zones
#TKEY:249 Transaction Key [RFC2930]

# dynamically generated:A, does not appear in zones
#TSIG:250 Transaction Signature [RFC2845]

# query only:A, does not appear in zones
#IXFR:251 incremental transfer [RFC1995]

# query only:A, does not appear in zones
#AXFR:252 transfer of an entire zone [RFC1035][RFC5936]

# query only:A, does not appear in zones
#MAILB:253 mailbox-related RRs (MB, MG or MR) [RFC1035]

# query only:A, does not appear in zones
#MAILA:254 mail agent RRs (OBSOLETE - see MX) [RFC1035]

# query only:A, does not appear in zones
#ANY:255 any RRTYPEs

URI:256:A URI [RFC7553]
   I2:priority Priority
   I2:weight Weight
   S[X]:target Target

CAA:257:A Certification Authority Restriction [RFC6844]
   I1:flags Flags
   S:tag Tag
   S[X]:value Value

#AVC:258:A Application Visibility and Control [Wolfgang_Riedel]

DLV:32769:A DNSSEC Lookaside Validation [RFC4431]
   I2:key Key tag
   I1[RSAMD5=1,DH=2,DSA=3,ECC=4,RSASHA1=5,INDIRECT=252,PRIVATEDNS=253,PRIVATEOID=254]:algorithm Algorithm
   I1:type Digest type
   X:digest Digest