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importantSYS.SOURCE: yeet.cx blog• 2026-07-10T13:11:26Z

Kernel-Level L7 Firewall Implementation Using eBPF and JavaScript

#ebpf#layer7#javascript#security#performance

The article details the implementation of a layer 7 firewall in the Linux kernel using eBPF, enabling high-performance application-layer traffic decisions with JavaScript-based policies. It leverages Aho-Corasick automata for efficient pattern matching and operates at XDP for minimal latency, outperforming traditional userspace proxies.

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