Install DNS Bind di Centos 5.4

Ini hanya tutorial sederhana tentang menggunakan DNS Bind di Centos 5.4. Langsung aja yak!

1. Install paket yg dibutuhkan :

# yum install bind bind-­chroot bind­-libs bind­-utils caching­-nameserver

2. Buat file rndc.conf :

# rndc-confgen -b 256 > /var/named/chroot/etc/rndc.conf

3. Lalu buat link ke direktori /etc :

# ln ­s /var/named/chroot/etc/rndc.conf /etc/

4. Setelah itu atur hak akses dan kepemilikan :

# chown root:named /var/named/chroot/etc/rndc.conf
# chmod 640 /var/named/chroot/etc/rndc.conf

5. Kalau sudah, lalu kita buat konfigurasinya dengan nama named : baca name-di (bukan mamed :p )di /var/named/chroot/etc/named.conf

//bagian ini hasil copy­paste dari berkas rndc.conf
key “rndckey” {
algorithm hmac-md5;
secret “dgkwELjKFonV/yxHiSG5Gw==”;
};

controls {
inet 127.0.0.1 allow { 127.0.0.1; } keys{ “rndckey”; };
inet 192.168.5.110 allow { 192.168.5.0/24; } keys{ “rndckey”; };
};

options {
directory “/var/named”;
pid-file “/var/run/named/named.pid”;

recursion yes;

allow-recursion {
127.0.0.1;
192.168.5.0/24;
};

// these are the opendns servers (optional)
#forwarders {
#208.67.222.222;
#208.67.220.220;
#};

listen-on {
127.0.0.1;
192.168.5.110;
};

/*
* If your nameservers is behind firewall you might need to uncomment the query-source
* directive below.
*/
query-source address * port 53;

// for security people can’t try to guess what version you’re running
version “REFUSED”;

allow-query {
127.0.0.1;
192.168.5.0/24;
};
};

server 192.168.5.110 {
keys { rndckey; };
};

zone “.” IN {
type hint;
file “named.ca”;
};

zone “alfach.org” {
type master;
file “data/alfach.zone”;
allow-update { none; };

};

Kalau sudah simpan.

6. Atur lagi hak akses dan kepemilikan filenya :

# chown root:named /var/named/chroot/etc/named.conf
# chmod 640 /var/named/chroot/etc/named.conf

7. Sekarang kita buat zone nya, tempatnya filenya sesuai dengan isi named.conf menunjuk (data/alfach.zone) :

# cd /var/named/chroot/var/named
# vi data/alfach.zone

Ini isi file zone tersebut

$TTL 38400 ; 1 day

@ IN SOA ns.alfach.org admin.alfach.org. (
2008090335 ; Serial
10800 ; Refresh after 3 hours
3600 ; Retry after 1 hour
604800 ; Expire after 1 week
86400 ; Minimum TTL 1 day
)

alfach.org. IN NS ns.alfach.org.
IN A 192.168.5.110
alfach.org. IN MX 1 mx.alfach.org.
ns.alfach.org. IN A 192.168.5.110
mx.alfach.org. IN A 192.168.5.110
mail.alfach.org. IN CNAME mx.alfach.org.

Beberapa catatan diatas, setiap nama domain, selalu diakhiri tanda titik (.)

8. Atur lagi hak akses dan kepemilikian kalau berubah :

# chown root:named /var/named/chroot/var/named/data/alfach.zone
# chmod 640 /var/named/chroot/var/named/data/alfach.zone

9. Jalankan named nya :

# /etc/init.d/named start

10. Kalau mau ditest, edit /etc/resolv.conf

search alfach.org
nameserver 192.168.5.110

test dig
# dig alfach.org

; < <>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5 < <>> alfach.org
;; global options: printcmd
;; Got answer:
;; ->>HEADER< <- opcode: QUERY, status: NOERROR, id: 60548 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; QUESTION SECTION: ;alfach.org. IN A ;; ANSWER SECTION: alfach.org. 38400 IN A 192.168.5.110 ;; AUTHORITY SECTION: alfach.org. 38400 IN NS ns.alfach.org. ;; ADDITIONAL SECTION: ns.alfach.org. 38400 IN A 192.168.5.110 ;; Query time: 69 msec ;; SERVER: 192.168.5.110#53(192.168.5.110) ;; WHEN: Mon Nov 30 13:06:48 2009 ;; MSG SIZE rcvd: 77

test host
# host alfach.org

alfach.org has address 192.168.5.110
alfach.org mail is handled by 1 mx.alfach.org.

test nslookup
# nslookup alfach.org

Server: 192.168.5.110
Address: 192.168.5.110#53

Name: alfach.org
Address: 192.168.5.110

done 🙂

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