Registro IPv4
host: 1class.ru
class: IN
ttl: 76391
type: A
ip: 5.101.153.40

Servidores DNS Principal (mname) y Secundario (rname)
host: 1class.ru
class: IN
ttl: 76392
type: SOA
mname: ns1.reg.ru
rname: hostmaster.ns1.reg.ru
serial: 1716007905
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 10800