Registro IPv4
host: lasmore.com
class: IN
ttl: 1800
type: A
ip: 121.88.250.220

host: postmaster.lasmore.com
class: IN
ttl: 89
type: CNAME
target: lasmore.com

Servidores DNS Principal (mname) y Secundario (rname)
host: lasmore.com
class: IN
ttl: 1800
type: SOA
mname: lasmore.com
rname: postmaster.lasmore.com
serial: 20150813
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200