Whistler is a Lisp-based language and compiler for creating efficient eBPF programs that run in the Linux kernel to handle network packets, tracing, and more.
How It Works
You hear about a friendly way to create super-fast network rules using simple list-like instructions, perfect for monitoring or filtering internet traffic right at the kernel level.
You grab the free Lisp runtime and build the tool with a simple command, giving you an interactive space to experiment safely on your Linux computer.
In the interactive playground, you type easy expressions like defining a packet counter or port blocker, feeling the power of describing what you want in plain lists.
You compile your rules into a special file that your computer's kernel can understand and load directly.
With a quick command, you attach your rule to your network interface, like adding a smart guard to watch or control traffic.
You check the counters or logs to see your rule counting packets or dropping unwanted ones in real-time.
Now your custom network monitor or filter runs efficiently in the kernel, making your system smarter and faster without hassle.
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