Registro IPv4
host: u7777.com
class: IN
ttl: 90
type: A
ip: 67.21.93.230

Servidores DNS Principal (mname) y Secundario (rname)
host: u7777.com
class: IN
ttl: 5578
type: SOA
mname: www.u7777.com
rname: u7777.com
serial: 2008080300
refresh: 1800
retry: 3600
expire: 604800
minimum-ttl: 3600