Servidores DNS Principal (mname) y Secundario (rname)
host: telgua.com
class: IN
ttl: 3600
type: SOA
mname: hdflns10.fl.hostdepot.net
rname: hostmaster.hostdepot.com
serial: 11
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600