Registro IPv4
host: app73.ru
class: IN
ttl: 1557
type: A
ip: 194.58.112.174

Servidores DNS Principal (mname) y Secundario (rname)
host: app73.ru
class: IN
ttl: 86400
type: SOA
mname: ns1.reg.ru
rname: hostmaster.ns1.reg.ru
serial: 1736867152
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 10800