$TTL 3600
@	IN	SOA	in.thelinuxpro.net. hostmaster.in.thelinuxpro.net. (
			24042001	 	; serial
			21600      		; refresh after 6 hours
			3600       		; retry after 1 hour
			604800     		; expire after 1 week
			86400 )    		; minimum TTL of 1 day
;
@	IN	NS	ns1.in.thelinuxpro.net.
@	IN	NS	ns2.in.thelinuxpro.net.
;
51.22	IN	PTR	pi501
61.22	IN	PTR	pi401
11.23	IN	PTR	jenkins
12.23	IN	PTR	git
13.23	IN	PTR	git-mysql
99.23	IN	PTR	viz
241.153	IN	PTR	ns1
242.153	IN	PTR	ns2