DNS에관한 질의

DNS를 잡고 nslookup으로 테스트를 해보면 다음과 같이 나옵니다.

[root@dogzzang /etc]# nslookup ns.dogzzang.com
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:         203.241.231.59
Address:        203.241.231.59#53

Name:   ns.dogzzang.com
Address: 203.241.231.59

[root@dogzzang /etc]# nslookup 203.241.231.59
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:         203.241.231.59
Address:        203.241.231.59#53

** server can't find 59.231.241.203.in-addr.arpa.: SERVFAIL

도메인 형식으로는 찾을수가 있으나 IP로는 검색이 되질 않습니다.

다음은 named.conf, dogzzang.zone, dogzzang.rev파일입니다.

named.conf

...생략

zone "dogzzang.com" IN {
        type master;
        file "dogzzang.zone";
        allow-update { none; };
};

zone "231.241.203.in-addr.arpa" IN {
        type master;
        file "dogzzang.rev";
        allow-update { none; };
};

dogzzang.zone

$TTL    43200
@                       1D IN SOA       ns.dogzzang.com.    root.dogzzang.com. (
                                        2001203         ; serial
                                        36000           ; refresh
                                        3600            ; retry
                                        3600000         ; expiry
                                        36000           ; minimum
 )

                        1D IN NS        ns.dogzzang.com.
                        1D IN A         203.241.231.59
                        1D IN MX        10 mail.dogzzang.com.

localhost               1D IN A         127.0.0.1
ns                      1D IN A         203.241.231.59
www                     1D IN A         203.241.231.59
mail                    1D IN A         203.241.231.59

dogzzang.rev

$TTL    43200
@       IN      SOA     ns.dogzzang.com.  root.dogzzang.com.  (
                                      2001203    ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum

       IN      NS      ns.dogzzang.com.
59     IN      PTR     ns.dogzzang.com.
59     IN      PTR     www.dogzznag.com.
59     IN      MX      mail.dogzzang.com.

왜 ip로는 검색이 되질 않는건지 궁금합니다. 설정파일엔 별무리가 없는듯한데 왜 ip로는 검색이 되지 않는지 궁금합니다. 그리고 ip검색이 되질 않을경우에도 버추얼 도메인사용 가능한지 궁금합니다.

운영자님 리플 꼭 부탁드립니다.