Registro IPv4
host: abclinuxu.cz
class: IN
ttl: 900
type: A
ip: 171.25.221.158

Servidores DNS Principal (mname) y Secundario (rname)
host: abclinuxu.cz
class: IN
ttl: 1800
type: SOA
mname: alfa.ns.active24.cz
rname: hostmaster.active24.cz
serial: 2019100704
refresh: 10800
retry: 1800
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: abclinuxu.cz
class: IN
ttl: 900
type: MX
pri: 10
target: nds1.nitemedia.cz