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Hacker News·3 min read·hard

Show HN: Z-Jail – A 130 KB Linux sandbox-C99 with 7 defense layers and zero deps

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Show HN: Z-Jail – A 130 KB Linux sandbox-C99 with 7 defense layers and zero deps
✦AI Summary

Z-Jail is a lightweight, 130 KB Linux sandboxing tool designed for secure code execution without external dependencies. It utilizes seven layers of defense, including namespaces and seccomp-BPF, to provide a secure environment for CI pipelines and CTF challenges.

Why it matters

It offers a minimalist alternative to heavy container runtimes, improving security for developers needing isolated environments.

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Multi-layer sandbox for native code execution on Linux. Seven independent defence layers — no external dependencies, ~130 KiB PIE binary.

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Confidence: 95%

Technical documentation for an open-source tool with no subjective framing.

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