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canonical Last modified: Tuesday, March 23, 2004
(adj.) Authoritative or standard; conforming to an accepted rule or procedure. When referring to programming, canonical means conforming to well-established patterns or rules. The term is typically used to describe whether or not a programming interface follows the already established standard. When referring to IP addressing, canonical means the authoritative host name stored in a DNS database that all of an IP address’ aliases resolve to. Also see CNAME.
	Related Categories Addressing Domain Name System Programming Standards Related Terms CNAME DNS IP address program standard