on.pro.ac.		30 IN CNAME pro.ac.
pro.ac.			30 IN SOA ns1.subdomain.net. hostmaster.pro.ac. (
				2024022304 ; serial
				10800      ; refresh (3 hours)
				1800       ; retry (30 minutes)
				604800     ; expire (1 week)
				180        ; minimum (3 minutes)
				)
on.pro.ac.		30 IN CNAME pro.ac.

pro.ac.			30 IN TXT "v=spf1 a mx -all"
on.pro.ac.		30 IN CNAME pro.ac.

pro.ac.			30 IN A	95.217.58.108
on.pro.ac.		30 IN CNAME pro.ac.
on.pro.ac.		30 IN CNAME pro.ac.

Name servers:
pro.ac.			30 IN NS ns1.subdomain.net.
pro.ac.			30 IN NS ns2.subdomain.net.