Registro IPv4
host: sherak.cz
class: IN
ttl: 900
type: A
ip: 81.91.86.11

Servidores DNS Principal (mname) y Secundario (rname)
host: sherak.cz
class: IN
ttl: 900
type: SOA
mname: ns.web4u.cz
rname: admin.web4u.cz
serial: 2025050300
refresh: 14400
retry: 3600
expire: 1209600
minimum-ttl: 14400

Servidor de Correo
host: sherak.cz
class: IN
ttl: 900
type: MX
pri: 10
target: mx1.mailchannels.net

Servidor de Correo
host: sherak.cz
class: IN
ttl: 900
type: MX
pri: 10
target: mx2.mailchannels.net