《NetBSD指南-25.2.6./etc/namedb/root.cache》

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《NetBSD指南-25.2.6./etc/namedb/root.cache》

帖子 leo » 2010-03-08 1:33

This file contains a list of root name servers for your server to query when it gets requests outside of its own domain that it cannot answer itself. Here are first few lines of a root zone file:

代码: 全选

;
;       This file holds the information on root name servers needed to
;       initialize cache of Internet domain name servers
;       (e.g. reference this file in the "cache  .  <file>"
;       configuration file of BIND domain name servers).
;
;       This file is made available by InterNIC
;       under anonymous FTP as
;           file                /domain/db.cache
;           on server           FTP.INTERNIC.NET
;       -OR-                    RS.INTERNIC.NET
;
;       last update:    Jan 29, 2004
;       related version of root zone:   2004012900
;
;
; formerly NS.INTERNIC.NET
;
.                        3600000  IN  NS    A.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET.      3600000      A     198.41.0.4
;
; formerly NS1.ISI.EDU
;
.                        3600000      NS    B.ROOT-SERVERS.NET.
B.ROOT-SERVERS.NET.      3600000      A     192.228.79.201
;
; formerly C.PSI.NET
;
.                        3600000      NS    C.ROOT-SERVERS.NET.
C.ROOT-SERVERS.NET.      3600000      A     192.33.4.12
;
...
This file can be obtained from ISC at http://www.isc.org/ and usually comes with a distribution of BIND. A root.cache file is included in the NetBSD operating system's "etc" set.

This section has described the most important files and settings for a DNS server. Please see the BIND documentation in /usr/src/dist/bind/doc/bog and named.conf(5) for more information.

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