It’s always DNS: Monitoring dynamic DNS environments with Checkmk
summary
An open-source Checkmk extension that parses /etc/resolv.conf on the site, discovers newly configured resolvers and creates per-resolver services, reports timeouts and measures resolver latency with graphs, and runs from the Checkmk site (API/agent hybrid) so checks reflect the server’s actual resolver chain. Install via mkp add/enable in RAW/Community Edition, find releases on Checkmk Exchange and GitHub, and accept external contributions without formal CLAs.
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chapters (17)
- 0:00Introduction and speaker notes
- 1:25About the company Comnet
- 2:28Speaker background and interests
- 3:29AWS outage and DNS impact
- 6:17Other major DNS failures
- 7:18Customer case and DNS issues
- 8:42Why monitor DNS environments
- 9:23Checkmk built-in DNS monitoring
- 11:13Introducing the Checkmk extension
- 12:16Installing the DNS extension
- 15:25Configuring the extension in Checkmk
- 17:52Activating and discovering services
- 19:40Monitoring DNS resolution results
- 21:03Simulating DNS misconfiguration
- 22:49Detecting and handling changes
- 24:34Benefits and features summary
- 25:59Q&A session
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