Servidores DNS Principal (mname) y Secundario (rname)
host: goethe-university-frankfurt.de
class: IN
ttl: 21600
type: SOA
mname: chaplin.rz.uni-frankfurt.de
rname: nameservice.uni-frankfurt.de
serial: 2024041106
refresh: 10800
retry: 3600
expire: 3000000
minimum-ttl: 86400