DNS- . DNS- : , ( ), . .
(Zone.dns) . Windows NT 4.0 , Place.dns, . DNS-, - , . , microsoft.com - microsoft.com.dns. .
, DNS. RFC 1034 : SOA, NS, A, CNAME, PTR, MX HINFO. Microsoft WINS WINS-R.
Start of Authority
Start of Authority (SOA). DNS. SOA:
@ IN SOA nameserverl.microsoft.com. glennwo.microsoft.com.
1: serial number
10800: refresh [3 hours]
3600: retry [1 hour]
604800: expire [7 days]
86400: time to live [1 day]
SOA :
@ " ";
IN ;
, (.) ;
@ (.).
.
Name Server
Name Server (NS) . Name Server. NS.
@ IN NS nameserver2.microsoft.com.
Host
Host (A) IP-. A ( , ). :
rhino IN A 157.55.200.143
localhost IN A 127.0.0.1
Canonical Name
Canonical Name (CNAME) IP-. (aliasing). CNAME:
FileServer1 CNAME rhino
www CNAME rhino
ftp CNAME rhino
RFC 1034, 1035 1183.
(z.y.x.w.in-addr.arpa) DNS- , IP-. in-addr.arpa, . , IP- 157.57.28.0, 57.157.in-addr.arpa. , DNS , SOA NS , , - (pointer records).
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DNS , . , (network file system, NFS), , NFS- DNS- IP- . , DNS-, DNS IP-, NFS .
(pointer record, PTR) IP- (reverse lookup zone). IP- in-addr.arpa. , , 157.55.200.51, 5l.200.55.157.in-ddr.arpa. :
51.200.55.157. in-addr. arpa. IN PTR mailserver1.microsoft.com.
-
Cache.dns . - , , , . , . -:
3600000 IN NS A.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET. 3600000 A 198.41.0.4
- , (authoritative domains). IP- DNS-. , DNS- Windows NT 4.0, . , , , .
- ftp:\\rs.internic.net/domain/named.cache.
(boot file) Berkeley Internet Name Daemon (BIND) - DNS. , , . RFC RFC. , DNS Manager, Windows NT 4.0 DNS-cep , .
DNS- . , . : directory, cache, primary secondary.
directory | , , |
cache | , DNS- . . -, , Windows NT |
primary | , , , ( ). |
secondary | , ( DNS-), IP- , . , . |
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|
directory [] | directory c:\winnt\system32\dns |
cache.[_] | cache.cache |
primary [] [ ] | primary microsoft.com microsoft.dns |
primary dev.microsoft.com dev.dns | |
secondary [] [_] [__] | secondary test.microsoft.corn 157.55.200.100 test.dns |
DNS- . . - . - DNS-ce . - DNS- Berkeley Internet Daemon Server.
DNS
DNS- , , , , .
, , DNS-, DNS- (Internet Service Provider, ISP). . , DNS-.
, InterNIC IP-, , DNS-, . DNS- .
Microsoft , , DNS- - . , () . DNS-. , , , . DNS-.