Registro IPv4
host: tktehno21.ru
class: IN
ttl: 3600
type: A
ip: 91.226.31.93

Servidores DNS Principal (mname) y Secundario (rname)
host: tktehno21.ru
class: IN
ttl: 3600
type: SOA
mname: n.i7.ru
rname: api.i7.ru
serial: 2014121601
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600