dengue.lk.		30 IN SOA alf.hsenid.lk. root.alf.hsenid.lk. (
				2019103001 ; serial
				43200      ; refresh (12 hours)
				3600       ; retry (1 hour)
				3600000    ; expire (5 weeks 6 days 16 hours)
				86400      ; minimum (1 day)
				)

dengue.lk.		30 IN A	198.54.120.146

Name servers:
dengue.lk.		30 IN NS dl01.hsenid.lk.
dengue.lk.		30 IN NS alf.hsenid.lk.