DNS 설정 문의드립니다.

아.. 벌써 며칠째 도메인문제로 골머리를 앓고 있습니다.
얼마전까지 잘 사용하다가 서브도메인 추가해도 연결이 되지 않아서 이것저것
해보고 있지만 더 이상해지고 있습니다. ㅠ ㅠ
제발 답변 바라겠습니다.

test.co.kr => 까페24에서 도메인 등록 후 네임서버를 자체서버로 변경.

/etc/resolv.conf
---------------------------------------
search test.co.kr
nameserver 218.xxx.xxx.xxx
---------------------------------------

/etc/named.conf
---------------------------------------
zone "test.co.kr" IN {
        type master;
        file "test.zone";
        allow-update { none; };
};
---------------------------------------

/var/named/test.zone
---------------------------------------
$TTL    86400
@       IN      SOA     ns1.test.co.kr.        webmaster.test.co.kr. (
                                                1997022700 ; Serial
                                                28800      ; Refresh
                                                14400      ; Retry
                                                3600000    ; Expire
                                                86400 )    ; Minimum
          IN      NS      ns1.test.co.kr.
          IN      A       218.xxx.xxx.xxx
          IN      MX      10      Mail.test.co.kr.
ns1     IN      A       218.xxx.xxx.xxx
www  IN      A       218.xxx.xxx.xxx
ftp      IN      A       218.xxx.xxx.xxx
Mail   IN      A       218.xxx.xxx.xxx
test     IN      A      218.xxx.xxx.xxx
---------------------------------------

/etc/init.d/named restart

로컬에서 nslookup test.co.kr
---------------------------------------
Note:  nslookup is deprecated and may be removed from future releases.
Consider using the `dig' or `host' programs instead.  Run nslookup with
the `-sil[ent]' option to prevent this message from appearing.
Server:         218.xxx.xxx.xxx
Address:        218.xxx.xxx.xxx#53

** server can't find test.co.kr: SERVFAIL
----------------------------------------

nslookup
-----------------------------------------
> server 218.xxx.xxx.xxx
Default Server: [218.xxx.xxx.xxx]
Address: 218.xxx.xxx.xxx
> test1.com  => 설정된 다른 도메인
Server: [218.xxx.xxx.xxx]
Address: 218.xxx.xxx.xxx
Name: test1.com
Address: 218.xxx.xxx.xxx
> test.co.kr  => 원래도메인
Server: [218.xxx.xxx.xxx]
Address: 218.xxx.xxx.xxx
*** [218.xxx.xxx.xxx] can't find test.co.kr: Server failed
-------------------------------------------

이렇게 설정된 다른 도메인의 질의가 되는데 test.co.kr 도메인은 질의가 안됩니다.
아~ 설정에 문제가 있다면 알려주십시오.

dig ns1.test.co.kr test.co.kr
------------------------------------------
; <<>> DiG 9.2.1 <<>> ns1.test.co.kr gauto.co.kr
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 20429
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;ns1.test.co.kr.               IN      A

;; Query time: 0 msec
;; SERVER: 218.xxx.xxx.xxx#53(218.xxx.xxx.xxx)
;; WHEN: Wed Mar  2 15:30:13 2005
;; MSG SIZE  rcvd: 33

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 63295
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;test.co.kr.                   IN      A

;; Query time: 0 msec
;; SERVER: 218.xxx.xxx.xxx#53(218.xxx.xxx.xxx)
;; WHEN: Wed Mar  2 15:30:13 2005
;; MSG SIZE  rcvd: 29
------------------------------------------

보시다시피 연결실패가 나옵니다.