rnrt.tn.		30 IN SOA ipamaster.rnu.tn. hostmaster.rnrt.tn. (
				1714270691 ; serial
				3600       ; refresh (1 hour)
				900        ; retry (15 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

rnrt.tn.		30 IN A	102.219.176.81

Name servers:
rnrt.tn.		30 IN NS ns1.cck.rnu.tn.
rnrt.tn.		30 IN NS ns3.cck.rnu.tn.
rnrt.tn.		30 IN NS ns2.cck.rnu.tn.