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Software sandboxing: The basics (2025)

116 points · 24 comments · mococa

  1. sieve · · focus · HN ↗
    I became interested in sandboxing last month after watching LLMs fail to respect basic boundaries. Well, the very expectation that they would is foolish in the first place.

    I am not a fan of application-level sandboxing. The JVM tried with its security manager, and Deno with its allow/deny, but it is not general enough for me. At some point you have to assume that anything you run on your machine is possibly broken/compromised and then deal with the situation depending on your risk appetite.

    This is a long story that I have written about on my blog, but I decided to go down the Bubblewrap + seccomp + socat route for the sandboxing tool I built. Let's me run harnesses and compilers and even headless Firefox in sandboxes without worrying about damage to random parts of my system.

    1. doc_ick · · focus · HN ↗
      Oh go ahead and damage random parts to your system if you want, just let the majority of non-tech or non-risk users benefit from some strong defaults.
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