Registro IPv4
host: opstrek.com
class: IN
ttl: 10800
type: A
ip: 54.67.42.145

Servidores DNS Principal (mname) y Secundario (rname)
host: opstrek.com
class: IN
ttl: 10800
type: SOA
mname: ns1.dyna-ns.net
rname: hostmaster.opstrek.com
serial: 2024111802
refresh: 16384
retry: 2048
expire: 1048576
minimum-ttl: 2560