Servidores DNS Principal (mname) y Secundario (rname)
host: womengenderandfamilies.ku.edu
class: IN
ttl: 3600
type: SOA
mname: ns1.ku.edu
rname: itcsc.ku.edu
serial: 703588732
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800