[Nagiosplug-help] DNS Performance

[Leandro Roggerone]

  Hello to all !! my isp is experimenting some service interruptions , i 
m thinking it could something related to my primary dns server ...
is there some tool to monitor my dns ?
Activity, performance, rejected queries ... everything that can help me 
to solve this problem,
Im talking about Nagios or Cacti tool , but i can also be other as well,
Thanks in advance , I have alwais found some help here!!