Monitor and troubleshoot: BIND logs, rndc, zone checks and probes

1 h Debian 12 Versions BIND 9.16, BIND 9.18, BIND 9.20

Objective

Know at any time whether MasterLinux DNS is healthy, and if not, where it is failing: logs that are actually useful, everyday rndc commands, reading load errors, and simple probes plugged into monitoring.

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