Overview#DomainComponent (DC in RFC 1274) AttributeTypes is a string holding one component, a label, of a DNS Domain name RFC 1034 RFC 2181 naming a host RFC 1123.
label = (ALPHA / DIGIT) [*61(ALPHA / DIGIT / HYPHEN) (ALPHA / DIGIT)] ALPHA = %x41-5A / %x61-7A ; "A"-"Z" / "a"-"z" DIGIT = %x30-39 ; "0"-"9" HYPHEN = %x2D ; hyphen ("-")
- OID of 0.9.2342.19200300.100.1.25
- NAME: DomainComponent DC
- EQUALITY: caseIgnoreIA5Match
- SUBSTR: caseIgnoreIA5SubstringsMatch
- SYNTAX: 220.127.116.11.4.1.1418.104.22.168.26
- USAGE: UserApplications
- Extended Flags:
- Used as MUST in:
- Used MAY in:
It is noted that the Directory Service will not ensure that values of this attribute conform to the host label restrictions RFC 1123 illustrated by the <label> production provided above. It is the directory client's responsibility to ensure that the labels it stores in this attribute are appropriately restricted.
Directory applications supporting International Domain Names SHALL use the ToASCII method RFC 3490 to produce the DomainComponent label. The special considerations discussed in Section 4 of RFC 3490 should be taken, depending on whether the DomainComponent is used for "stored" or "query" purposes.