operatorstraining.com.	30 IN SOA ns1.systemdns.com. hostmaster.systemdns.com. (
				1711011347 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

operatorstraining.com.	30 IN A	52.74.116.56

Mail exchangers:
operatorstraining.com.	30 IN MX 20 mx2.emailsrvr.com.
operatorstraining.com.	30 IN MX 10 mx1.emailsrvr.com.

Name servers:
operatorstraining.com.	30 IN NS ns2.systemdns.com.
operatorstraining.com.	30 IN NS ns3.systemdns.com.
operatorstraining.com.	30 IN NS ns1.systemdns.com.