Registro IPv4
host: ads4blog.net
class: IN
ttl: 65
type: A
ip: 51.161.21.1

Servidores DNS Principal (mname) y Secundario (rname)
host: ads4blog.net
class: IN
ttl: 65
type: SOA
mname: ns1.expirationwarning.net
rname: hostmaster.expirationwarning.net
serial: 2026090300
refresh: 7200
retry: 3600
expire: 604800
minimum-ttl: 3600