Registro IPv4
host: hcg.udg.mx
class: IN
ttl: 1600
type: A
ip: 187.174.170.2

Servidores DNS Principal (mname) y Secundario (rname)
host: hcg.udg.mx
class: IN
ttl: 21600
type: SOA
mname: e.ns.udg.mx
rname: jaime.noc.udg.mx
serial: 30
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 900