④ named.ca 文件

;       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  .  "
;       configuration file of BIND domain name servers).
;
;       This file is made available by InterNIC registration services
;       under anonymous FTP as
;           file                /domain/named.root
;           on server           FTP.RS.INTERNIC.NET
;       -OR- under Gopher at    RS.INTERNIC.NET
;           under menu          InterNIC Registration Services (NSI)
;              submenu          InterNIC Registration Archives
;           file                named.root
;
;       last update:    Aug 22, 2000
;       related version of root zone:   2000082200
;
; 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.
;
; formerly NS1.ISI.EDU
. 3600000 NS B.ROOT-SERVERS.NET.
B.ROOT-SERVERS.NET. 3600000 A 128.9.0.107
;
; formerly C.PSI.NET
.  3600000  NS  C.ROOT-SERVERS.NET.
C.ROOT-SERVERS.NET.  3600000  A  192.33.4.12
;
; formerly TERP.UMD.EDU
.  3600000  NS  D.ROOT-SERVERS.NET.
D.ROOT-SERVERS.NET.  3600000  A  128.8.10.90
;
; formerly NS.NASA.GOV
;.  3600000  NS  E.ROOT-SERVERS.NET.
E.ROOT-SERVERS.NET.  3600000  A  192.203.230.10
;
; formerly NS.ISC.ORG
.  3600000  NS  F.ROOT-SERVERS.NET.
F.ROOT-SERVERS.NET.  3600000  A  192.5.5.241
;
; formerly NS.NIC.DDN.MIL
.  3600000  NS  G.ROOT-SERVERS.NET.
G.ROOT-SERVERS.NET.  3600000  A  192.112.36.4
;
; formerly AOS.ARL.ARMY.MIL
.  3600000  NS  H.ROOT-SERVERS.NET.
H.ROOT-SERVERS.NET.  3600000  A  128.63.2.53

    说明：named.ca文件一般不需要修改。