The Cache File

The cache file contains host information that is needed to resolve names outside the authoritative domains. It contains names and addresses of root name servers. For users on the Internet, the default file provided with the Microsoft DNS Service should suffice. For installations NOT connected to the Internet, the file should be replaced to contain the name servers authoritative for the root of your private network.

For a current Internet cache file see FTP://rs.internic.net/domain/named.cache

Example:

; DNS CACHE FILE

;
; Initial cache data for root domain servers.
;
; YOU SHOULD CHANGE:
; —Nothing if connected to the Internet. Edit this file only when
;   update root name server list is released.
;   OR
; —If NOT connected to the Internet, remove these records and replace
;   with NS and A records for the DNS server authoritative for the
;   root domain at your site.
; Internet root name server records:
;  last update: Sep 1, 1995
;  related version of root zone: 1995090100
;
; 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  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  39.13.229.241
; 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.
; End of File