Membuat Primary dan Slave DNS BIND9

From Wikipidia :

The Domain Name System (DNS) is a hierarchical naming system built on a distributed database for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities.

Atau secara sederhana DNS adalah mentranslasikan bentuk IP ADDRESS ke dalam bentuk penamaan yang lebih manusiawi atau lebih mudah diingingat.

Contoh kali ini menggunakan ubuntu 10.04 LTS

-  dns contoh mempunyai domain yang yaitu coba.net

- DNS primary 10.10.10.1 , DNS secondary 10.10.10.2

–INSTALLING DNS TO PRIMARY–

Setup BIND9 :

sudo apt-get install bind9

Setelah proses setup selesai dan tidak terdapat eror edit file /etc/resolv.conf

search coba.net
nameserver 10.10.10.1

Edit konfigurasi di /etc/bind/named.conf.local

nano /etc/bind/named.conf.local
//This file contains all local and changable info.
//Begin File - by creating the following entry:
//----------- Begin coba.net ------------
zone "kartbuilding.net" {
       type master;
       file "/etc/bind/coba.net";
       allow-transfer { 10.10.10.2; }; ; Note this line is only for 
                     ;a secondary nameserver, allowing for zone transfer.
};

//The next is the reverse DNS entry.
zone "10.10.10.in-addr.arpa" {
        type master;
        file "/etc/bind/10.db";
};
//------------ End of coba.net ----------

membuat file zone coba.net

sudo nano /etc/bind/coba.net
//Begin file --------------------------------
$TTL 3h

@ IN SOA ns.coba.net. root.coba.net. (
2010102501 ; counter/ Serial    ; in the format YYYYMMDDCC where CC - counter 1 to 99
15m        ; refresh
15m        ; Retry Interval
1w         ; Expire
1h )       ; Negative Cache TTL 

IN NS ns.coba.net. ; dns utama atau primary
IN NS ns1.coba.net.; dns secodary       

ns  IN  A  10.10.10.1
ns1 IN  A  10.10.10.2
@   IN  A  10.10.10.1   ; @ digunakan untuk nama tanpa www.
//End file ------------------------------------

Membuat reserve zone DNS

sudo nano /etc/bind/10.db
//Start of file -------------------------
@       IN      SOA     ns.coba.net. root.coba.net. (
                2010102501       ; counter/ Serial
                15m              ; refresh
                15m              ; Retry Interval
                1w               ; Expire
                1h )             ; Negative Cache TTL

        IN      NS      ns.coba.net.
        IN      NS      ns1.coba.net. 

1     IN      PTR     ns.coba.net.
2     IN      PTR     ns1.coba.net.
//End of file ---------------------------

Setting DNS secondary dengan alamat IP 10.10.10.2

edit atau tambahkan konfigurasi file

nano /etc/bind/named.conf.local
//add the following lines:

zone "coba.net" {
        type slave;
        file "/etc/bind/slaves/coba.net";
        masters { 10.10.10.1; };
        allow-transfer { 10.10.10.1; };
};

// buat direktori /etc/bind/slaves dan rubah owner ke user bind

sudo mkdir /etc/bind/slaves
sudo chown bind:bind /etc/bind/slaves

setelah selesai semua konfigurasi baik primary maupun secondary restart konfigurasi bind

di kedua server

sudo /etc/init.d/bind9 restart

untuk mengecek apakah semua konfigurasi telah benar pastikan setelah reload tidak eror message yang

tampil.. –END–