-----------------------------------------
답변자가 기본적으로 참고할 내용입니다.
- 배포판(옵션)    : LINUX 7.2 한글판
- 커널버전(옵션)
  : kernel-2.4.7-x
- 데몬버전(예:apache
 1.3.27) : bind-9.2.1
- 데몬설치유형(RPM/컴파일/기타)
 : RPM
-----------------------------------------

bind 설치 버전은 다음과 같습니다.
[root]# rpm -qa | grep bind
bind-devel-9.2.1-0.7x
bind-9.2.1-0.7x
bind-utils-9.2.1-0.7x

네임 설정은 다음과 같습니다.
[root]# cat /etc/name.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;
        allow-transfer  { 210.114.223.119; localhost; };
        allow-query     { 61.252.68.64/26; localhost; };
        allow-recursion { 61.252.68.64/26; localhost; };
};

//
// a caching only nameserver config
//
zone "." IN {
        type hint;
        file "named.ca";
};
zone "0.0.127.in-addr.arpa" {
        type master;
        file "named.local";
};
zone    "icross.co.kr"          IN      { type master; file
"zone-default";        allow-query { any; };};
zone    "mghland.co.kr"         IN      { type master; file
"zone-default";         allow-query { any; };};
zone    "hu-land.co.kr"         IN      { type master; file
"zone-default";         allow-query { any; };};

존 파일 설정 다음과 같습니다.
[root]# cat /var/named/zone-default
$TTL    86400
@               IN      SOA     ns.icross.co.kr.  root.icross.co.kr. (
                                      2003103114 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum

               IN      NS      ns.icross.co.kr.
               IN      A       210.114.223.120
*              IN      A       210.114.223.120


로그 기록에 아래와 같이 이상한것이 나와서 이것 때문에
외부에서 접속이 안될때가 있는지 알고 싶습니다.
[root@mail bugulee]# tail /var/log/messages
Oct 31 16:08:53 mail named[8404]: client 168.126.63.13#1454: query (cache) denied
Oct 31 16:09:10 mail named[8404]: client 203.232.140.3#48048: query (cache) denied
Oct 31 16:09:52 mail named[8404]: client 210.117.65.139#57601: query (cache) denied
Oct 31 16:10:59 mail named[8403]: client 61.81.63.1#12902: query (cache) denied
Oct 31 16:10:59 mail named[8404]: client 61.81.63.1#12902: query (cache) denied
Oct 31 16:12:07 mail named[8403]: client 168.126.63.30#14218: query (cache) denied
Oct 31 16:12:10 mail named[8403]: client 61.107.168.198#3451: query (cache) denied
Oct 31 16:12:12 mail named[8404]: client 61.107.168.198#3451: query (cache) denied
Oct 31 16:12:13 mail named[8403]: client 61.107.168.198#3451: query (cache) denied
Oct 31 16:12:18 mail named[8404]: client 61.107.168.198#3451: query (cache) denied

해결 방법이 있으면 조언좀 부탁 드려요..