현재 학교 전산업무를 담당하고 있습니다. 저희 학교는 krnic에
ns.****.es.kr로 등록이 되어 있는데 외부에서 ping ns.****.es.kr로
하면 응답을 받을 수 있지만 www.****.es.kr로 하면 응답을 받을 수
없었습니다.
그래서 여러가지 글을 읽어보고 dns 설정을 하였습니다. 며칠동안 시간을
투자하여 간신히 했다고 생각을 했는데 보니까 서버 자체에서는
ping www.****.es.kr로 하면 응답이 있는데 다른 외부의 컴퓨터에서 하면
여전히 응답이 없습니다.
왜 그런 것일까요? 답변을 부탁드립니다.
 아래에 파일 설정한 것을 올려드립니다.
=================================================> /etc/named.conf
// generated by named-bootconf.pl
 options {
directory "/var/named";
/*
* If there is a firewall between you and nameservers you want
* to talk to, you might need to uncomment the query-source
* directive below. Previous versions of BIND always asked
* questions using port 53, but BIND 8.1 uses an unprivileged
* port by default.
*/
// query-source address * port 53;
};
 //
// a caching only nameserver config
//
zone "." IN {
type hint;
file "named.ca";
};
 zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.local";
allow-update { none; };
};
 zone "****.es.kr" IN {
type master;
file "named.zone";
allow-update { none; };
};
 zone "**.***.211.in-addr.arpa" IN {
type master;
file "named.rev";
allow-update { none; };
};
key "key" {
algorithm hmac-md5;
secret "onScqMxgBSDS0mgAomvBFyUgynuGEdRCBKywbMmXOmYGmItOekdPLpngETeG";
};
  =================================================> /var/named.ca
; 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, 1997
; related version of root zone: 1997082200
;
;
; 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 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
;
; formerly NIC.NORDU.NET
;
. 3600000 NS I.ROOT-SERVERS.NET.
I.ROOT-SERVERS.NET. 3600000 A 192.36.148.17
;
; temporarily housed at NSI (InterNIC)
;
. 3600000 NS J.ROOT-SERVERS.NET.
J.ROOT-SERVERS.NET. 3600000 A 198.41.0.10
;
; housed in LINX, operated by RIPE NCC
;
. 3600000 NS K.ROOT-SERVERS.NET.
K.ROOT-SERVERS.NET. 3600000 A 193.0.14.129
;
; temporarily housed at ISI (IANA)
;
. 3600000 NS L.ROOT-SERVERS.NET.
L.ROOT-SERVERS.NET. 3600000 A 198.32.64.12
;
; housed in Japan, operated by WIDE
;
. 3600000 NS M.ROOT-SERVERS.NET.
M.ROOT-SERVERS.NET. 3600000 A 202.12.27.33
; End of File
  =================================================> /var/named.local
$TTL 86400
@ IN SOA ****.es.kr. root.****.es.kr. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS ns.****.es.kr.
 1 IN PTR localhost.
  =================================================> /etc/named.rev
@ IN SOA ****.es.kr. root.****.es.kr. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS ns.****.es.kr.
3 IN PTR ns.****.es.kr.
  =================================================> /etc/named.zone
@ IN SOA ****.es.kr. root.****.es.kr. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS ns.****.es.kr.
IN A 211.***.**.3
MX 10 mail.****.es.kr.
 localhost IN A 127.0.0.1
ns IN A 211.***.**.3
www.nowon.es.kr IN A 211.***.**.3
nowon.es.kr IN A 211.***.**.3
mail IN CNAME ns
ftp IN CNAME ns