Registro IPv4
host: purl.org
class: IN
ttl: 3600
type: A
ip: 207.241.225.157

Servidores DNS Principal (mname) y Secundario (rname)
host: purl.org
class: IN
ttl: 3600
type: SOA
mname: rush.easydns.com
rname: zone.easydns.com
serial: 1731439996
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 300