Servidores DNS Principal (mname) y Secundario (rname)
host: zslxj.com
class: IN
ttl: 3600
type: SOA
mname: ns1.oscloudcdns.com
rname: dns-admin.oscloudcdns.com
serial: 712041910
refresh: 3600
retry: 180
expire: 1209600
minimum-ttl: 180