Unsponsored TLD Agreement: Appendix C, Section 8 (.biz) Posted: 27 April 2001

C.8 Database Services

The following grammer representation of XML syntax uses the Augmented Backus-Naur Form (ABNF), defined in rfc2234:

octet	=	<any 8-bit sequence of data>
hextet	=	<any 16-bit sequence of data>
char	=	<any US-ASCII character (octets 0 - 127)>; see ANSI X3.4-1986
upalpha	=	"A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z"
lowalpha	=	"a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z"
alpha	=	lowalpha | upalpha; also called "letter"
digit	=	"0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"; also called "number"
alphanum	=	alpha | digit; also called "letnum"
plus	=	0x2b
hyphen	=	0x2d; also called "dash"
dot	=	0x2e
underscore	=	0x5F
ldh	=	alpha | digit | hyphen; also (abuse of notation) called "dns-char"
id-prefix	=	alphanum
ldh-label	=	[61* ldh id-prefix]
label	=	id-prefix ldh-label
sldn	=	label dot label
hostname	=	*(label dot) sldn
ipv4-addr	=	1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT
ipv6-addr	=	hexpart [ ":" IPv4address ]
hexpart	=	hexseq | hexseq "::" [ hexseq ] | "::" [ hexseq ]
hexseq	=	hex4 *( ":" hex4)
hex4	=	1*4HEXDIG
e164a-addr	=	plus 1*3 digit dot 1*12 digit

Every resource record in the .biz zone will have one of the following as its owner:

• xbiz (for the SOA record and ns records for the .biz zone itself)
• An sldn, where the right-hand label is "biz" (for NS records)
• A hostname, where the right-hand label is "biz" (for A records)