Servidores DNS Principal (mname) y Secundario (rname)
host: comsatshosting.com
class: IN
ttl: 48147
type: SOA
mname: n1.comsats.net.pk
rname: root.isb.comsats.net.pk
serial: 2026072902
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 86400