DNS Server linux, bind

• sudo apt-get install bind9
• sudo gedit /etc/bind/named.conf.local

 zone "tugab.bg"
 {
  type master;
  file "/etc/bind/zones/tugab.bg.db";
 };
 zone "4.16.172.in-addr.arpa"
 {
  type master;
  file "/etc/bind/zones/rev.4.16.172.in-addr.arpa"; 
 };

• sudo gedit /etc/bind/named.conf.options

 forwarders {
 194.141.15.1;
 };

• sudo mkdir /etc/bind/zones
• sudo gedit /etc/bind/zones/tugab.bg.db

$TTL	60
tugab.bg.	IN	SOA	n1.tugab.bg. admin.tugab.bg. (
			      1		; Serial
			 604800		; Refresh
			  86400		; Retry
			2419200		; Expire
			 604800 )	; Negative Cache TTL
;
tugab.bg. IN 	NS 	n1.tugab.bg.
@	  IN	A	172.16.4.1
n1	  IN	A	172.16.4.1
www2	  IN	A	172.16.4.2

sudo gedit rev.4.16.172.in-addr.arpa

$TTL	604800
@	IN	SOA	n1.tugab.bg. admin.tugab.bg. (
			      1		; Serial
			 604800		; Refresh
			  86400		; Retry
			2419200		; Expire
			 604800 )	; Negative Cache TTL
;
	IN	NS	tugab.bg.
1	IN	PTR	tugab.bg.

• sudo /etc/init.d/bind9 restart

• sudo vi /etc/resolv.conf

• dig tugab.com /
• nslookup 172.16.0.1