软件包：endlessh（1.1-5 以及其他的）

SSH tarpit that slowly sends an endless connection banner

Endlessh is an SSH tarpit that very slowly sends an endless, random SSH banner. It keeps SSH clients locked up for hours or even days at a time. The purpose is to put your real SSH server on another port and then let abusive bots get stuck in this tarpit instead of bothering a real server.

Since the tarpit is in the banner before any cryptographic exchange occurs, this program doesn't depend on any cryptographic libraries. It's a simple, single-threaded, standalone C program. It uses poll() to trap multiple clients at a time.

See https://nullprogram.com/blog/2019/03/22/ for more details.

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