fail2zig
Bans brute-force IPs from your logs with one static binary and no Python
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coldframe
A decoy refrigeration controller that records who comes knocking and why
Retail refrigeration controllers carry public CVEs and sit on the open internet, and this shows you who is probing for them without exposing a real one.
coldframe imitates two supermarket refrigeration controllers, the Danfoss AK-SM 800A and the Dixell XWEB 500, and logs every connection, login attempt and request that matches a known exploit. It never runs commands or forwards traffic, and an optional Modbus service stays off unless you enable it. It is one Python file using only the standard library, with a Podman container and a cloud-init file for a quick deploy. The README is candid: interaction is shallow and public code can be fingerprinted.
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