named-xfer is called by in.named whenever in.named needs to perform a Zone Transfer. named-xfer should not be called independently.
; ; boot file for name server ; ; type domain source file or host ; domain berkeley.edu primary berkeley.edu named.db secondary cc.berkeley.edu 10.2.0.78 22.214.171.124 cache . named.ca
The domain line specifies that berkeley.edu is the domain of the given server.
The primary line states that the file named.db contains authoritative data for berkeley.edu. The file named.db contains data in the Zone file format, described in RFC 1035, except that all domain names are relative to the origin; in this case, berkeley.edu (see Zone File Format below for a more detailed description).
The secondary line specifies that all authoritative data under cc.berkeley.edu is to be transferred from the name server at 10.2.0.78. If the transfer fails it will try 126.96.36.199, and continue for up to ten tries at that address. The secondary copy is also authoritative for the domain.
line specifies that data in
is to be placed in
the cache (typically such data as the locations of root domain
servers). The file
is in the same format as
where domain is "." for the root, "@" for the current origin, or a standard domain name. If domain is a standard domain name that does not end with ".", the current origin is appended to the domain. Domain names ending with "." are unmodified.
The opt_ttl field is an optional integer number for the time-to-live field. It defaults to zero.
The opt_class field is currently one token, IN for the Internet.
The type field is one of the following tokens; the data expected in the resource_record_data field is in parentheses.
Braden, R. (Editor), Requirements for Internet Hosts - Applications and Support, RFC 1123, Internet Engineering Task Force - Network Working Group, October 1989
Mockapetris, Paul, Domain Names - Concepts and Facilities, RFC 1034, Network Information Center, SRI International, Menlo Park, Calif., November 1987.
Mockapetris, Paul, Domain Names - Implementation and Specification, RFC 1035, Network Information Center, SRI International, Menlo Park, Calif., November 1987.
Mockapetris, Paul, Domain System Changes and Observations, RFC 973, Network Information Center, SRI International, Menlo Park, Calif., January 1986.
Partridge, Craig, Mail Routing and the Domain System, RFC 974, Network Information Center, SRI International, Menlo Park, Calif., January 1986.
Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).
Last modified 21/April/97