sevmash.su.		30 IN SOA ns3-l2.nic.ru. dnsmaster.sevmash.ru. (
				2016082700 ; serial
				10800      ; refresh (3 hours)
				1800       ; retry (30 minutes)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

Name servers:
sevmash.su.		30 IN NS ns3-l2.nic.ru.
sevmash.su.		30 IN NS ns4-l2.nic.ru.
sevmash.su.		30 IN NS ns8-l2.nic.ru.
sevmash.su.		30 IN NS ns4-cloud.nic.ru.
sevmash.su.		30 IN NS ns8-cloud.nic.ru.