Registro IPv4
host: 4s7s.com
class: IN
ttl: 300
type: A
ip: 38.12.25.95

Servidores DNS Principal (mname) y Secundario (rname)
host: 4s7s.com
class: IN
ttl: 300
type: SOA
mname: ns1.dyna-ns.net
rname: hostmaster.4s7s.com
serial: 1718788179
refresh: 16384
retry: 2048
expire: 1048576
minimum-ttl: 2560