Servidores DNS Principal (mname) y Secundario (rname)
host: catalunya.cat
class: IN
ttl: 10685
type: SOA
mname: xcat-pro-ipam-gest-01-gen1.localdomain
rname: ricardoalejandro.gonzalez.t-systems.es
serial: 2022102703
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 900