DNS서버 세팅 후 오류...

책에서 보고 인터넷 찾아보고 하면서 네임서버세팅을 하는데 잘 안되네요...ㅜ.ㅜ
작업목표는 서버1대를 DNS서버겸 웹서버로 사용하려 합니다.
오류메시지와 관련파일들입니다. 좀 봐주세요...
보안상 제 도메인은 aa.com으로 아이피는 1.2.3.4 으로 적었습니다.
그리고 있으면 안될 구문.. 없어도 될 구문.. 등등... 구체적인 도움 부탁드리겠습니다...
(어느 분이 올리신 질문 형식을 복사해왔습니다.^^;;)

------------------------오류메시지--------------------------------------------------
[root@Alice root]# nslookup aa.com
Server:         1.2.3.4
Address:        1.2.3.4#53

** server can't find lunalab.net: SERVFAIL
------------------------------------------------------------------------------------
------------------------ /etc/sysconfig/network------------------------------------
NETWORKING=yes
HOSTNAME=ns
DOMAINNAME=aa.com
GATEWAY=000.000.000.129 << 제대로 잡혀있습니다.
------------------------------------------------------------------------------------
------------------------ /etc/resolv.conf ------------------------------------
domain aa.com
search ns.aa.com www.aa.com
nameserver 1.2.3.4
nameserver 168.126.63.1
nameserver 168.126.63.2
------------------------------------------------------------------------------------
------------------------ /etc/named.conf ------------------------------------
zone "aa.com" IN {
        type master;
        file "aa.zone";
        allow-update { none; };
};

zone "3.2.1.in-addr.arpa" IN {
        type master;
        file "aa.rev";
        allow-update { none; };
};

------------------------------------------------------------------------------------
------------------------ /var/named/aa.zone ------------------------------------
$TTL    86400
@               IN SOA  @       ns.aa.com. root.aa.com. (
                                        20070215        ; serial (d. adams)
                                        3H              ; refresh
                                        15M             ; retry
                                        1W              ; expiry
                                        1D )            ; minimum

                IN NS           1.2.3.4
                IN MX 10        mail.aa.com.

                IN A            1.2.3.4
        localhost       IN A    127.0.0.1
        www     IN A            1.2.3.4
        mail    IN A            1.2.3.4
        ftp     IN A            1.2.3.4
        ns      IN A            1.2.3.4

------------------------------------------------------------------------------------
------------------------ /var/named/aa.rev ------------------------------------
$TTL    86400
@               IN SOA  @       ns.aa.com. root.aa.com. (
                                        20070215        ; serial (d. adams)
                                        3H              ; refresh
                                        15M             ; retry
                                        1W              ; expiry
                                        1D )            ; minimum

                IN NS           ns.aa.com.

        4      IN PTR          aa.com.
        4      IN PTR          www.aa.com.
        4      IN PTR          mail.aa.com.
        4      IN PTR          ftp.aa.com.
        4      IN PTR          ns.aa.com.