Servidores DNS Principal (mname) y Secundario (rname)
host: pezhvak.org
class: IN
ttl: 3027
type: SOA
mname: ns1.pezhvak.org
rname: ns2.pezhvak.org
serial: 233
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600