ac.			30 IN SOA a0.nic.ac. hostmaster.donuts.email. (
				1764939649 ; serial
				7200       ; refresh (2 hours)
				900        ; retry (15 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

Name servers:
ac.			30 IN NS c0.nic.ac.
ac.			30 IN NS a0.nic.ac.
ac.			30 IN NS a2.nic.ac.
ac.			30 IN NS b0.nic.ac.