Registro IPv4
host: freelinuxhost.com
class: IN
ttl: 3600
type: A
ip: 66.40.66.171

Servidores DNS Principal (mname) y Secundario (rname)
host: freelinuxhost.com
class: IN
ttl: 3600
type: SOA
mname: dns1.100ws.com
rname: root.100webspace.com
serial: 1637243725
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400