DNS Server centos

Membuat DNS Server (MASTER RECORD-BIND / RHEL 6.4 / CENTOS 6.4)

Preparation RHCE

Sekali lagi biar gak lupa. hehe

1)  yum install bind bind-utils

2) Edit /etc/named.conf lalu ganti bagian yg di bold, menjadi seperti dibawah ini :

options {
        listen-on port 53 { any; };
        listen-on-v6 port 53 { any; };
        directory       "/var/named";
        dump-file       "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        memstatistics-file "/var/named/data/named_mem_stats.txt";
        allow-query     { any; };
        recursion yes;

        dnssec-enable yes;
        dnssec-validation no;
        dnssec-lookaside auto;

        /* Path to ISC DLV key */
        bindkeys-file "/etc/named.iscdlv.key";

        managed-keys-directory "/var/named/dynamic";
};

3) masih di /etc/named.conf tambahin ini

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

4) lalu buat file example.com.zone di /var/named

# vim /var/named/example.com.zone

[root@rhce1 ~]# cat /var/named/example.com.zone
$TTL 86400
@   IN  SOA     ns1.example.com. root.example.com. (
        2013042201  ;Serial
        3600        ;Refresh
        1800        ;Retry
        604800      ;Expire
        86400       ;Minimum TTL
)
; Specify our two nameservers
IN NS ns1.example.com.
IN MX 10 mail.example.com.
; Resolve nameserver hostnames to IP, replace with your two droplet IP addresses.
ns1 IN A 192.168.122.22
rhce1 IN A 192.168.122.22
rhce2 IN  A 192.168.123.22
rhce3 IN A 192.168.124.22
;IN MX 10 mail.example.com.

; Define hostname -> IP pairs which you wish to resolve
@ IN A 192.168.122.22
www IN A 192.168.122.22

5) Start service 

# /etc/init.d/named start

6) Verivikasi dengan command host -al example.com, dimana example.com itu optional tergantung domain yg sebelumnya dibuat

NOTE : Sebelum verifikasi, jangan lupa /etc/resolve.conf nya ditembak ke arah IP Address dimana file konfigurasi dns master ini disetting. Misal kalo di case ini, pake ip 192.168.122.22

#vim /etc/resolve.conf

nameserver 192.168.122.22

lalu gunakan command dibawah ini untuk vervikasi

[root@rhce1 ~]# host -al example.com

Trying "example.com"

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36348

;; flags: qr aa ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:

;example.com. IN AXFR

;; ANSWER SECTION:

example.com. 86400 IN SOA ns1.example.com. root.example.com. 2013042201 3600 1800 604800 86400

example.com. 86400 IN NS ns1.example.com.

example.com. 86400 IN NS rhce1.example.com.

example.com. 86400 IN NS rhce2.example.com.

example.com. 86400 IN NS rhce3.example.com.

example.com. 86400 IN MX 10 mail.example.com.

example.com. 86400 IN A 192.168.122.22

ns1.example.com. 86400 IN A 192.168.122.22

rhce1.example.com. 86400 IN A 192.168.122.22

rhce2.example.com. 86400 IN A 192.168.123.22

rhce3.example.com. 86400 IN A 192.168.124.22

www.example.com. 86400 IN A 192.168.122.22

example.com. 86400 IN SOA ns1.example.com. root.example.com. 2013042201 3600 1800 604800 86400

Received 305 bytes from 192.168.122.22#53 in 1 ms

Done. ^^