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In regards to your requirements, the DNS Query wizard allows you to specify a DNS server to use for the query. As long as you are putting in the IPs for your DCs when you run the wizard, and are having them check a DNS entry you know they should have, it will be a valid check.
For example, I used 8.8.8.8 to resolve www.google.com which should never fail. Then I used 127.0.0.1 (which is not running DNS) to check www.nagios.com and it did fail. This is about as clear an answer you can get as to whether DNS is working. You could check the service itself using NRPE or something, but that would not take into account firewall issues that might be blocking port 53. You could check port 53 but that would not tell you if a DNS query comes back clean. Only an actual DNS check will give you the real state of the service.
Monitor DNS
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donnyforbes
- Posts: 357
- Joined: Tue Jun 13, 2017 2:17 pm
Re: Monitor DNS
Never mind I was able to figure out thanks you can close this ticket now.