Registro IPv4
host: pdfbook.us
class: IN
ttl: 31
type: A
ip: 172.238.172.122

Registro IPv4
host: pdfbook.us
class: IN
ttl: 31
type: A
ip: 172.236.104.43

Registro IPv4
host: pdfbook.us
class: IN
ttl: 31
type: A
ip: 172.236.104.157

Servidores DNS Principal (mname) y Secundario (rname)
host: pdfbook.us
class: IN
ttl: 31
type: SOA
mname: ns1.parklogic.com
rname: hostmaster.pdfbook.us
serial: 1
refresh: 3600
retry: 7200
expire: 1209600
minimum-ttl: 60