Servidores DNS Principal (mname) y Secundario (rname)
host: ezitec.co.kr
class: IN
ttl: 16
type: SOA
mname: ns1.uhost.co.kr
rname: ts.inames.co.kr
serial: 2014022812
refresh: 28800
retry: 14400
expire: 604800
minimum-ttl: 86400