Checkmk plugin for monitoring all IPv4 and IPv6 addresses blocked by Linux nftables. Includes separate services per IP family, threshold-driven alerts, integer-only graphing, and supports dynamic sets (CrowdSec, custom). Easy MKP/manual installation.
This plugin is designed for Checkmk 2.3 and above.
https://github.com/nicoh88/checkmk-agent-based-nftables-plugin