Registro IPv4
host: doorchat.com
class: IN
ttl: 3600
type: A
ip: 45.55.55.31

Servidores DNS Principal (mname) y Secundario (rname)
host: doorchat.com
class: IN
ttl: 3600
type: SOA
mname: ns1.domainofferform.com
rname: hostmaster.domainofferform.com
serial: 1
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600