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passt

brew install passt v2026_06_11.a9c61ff GPL-2.0-or-later AND BSD-3-Clause

User-mode networking daemon for VMs and Linux namespaces, translating layer-4 sockets without a TAP device.

Why you might care

Passt eliminates the need for root-owned TAP interfaces and complex network setup when running VMs or containers, reducing kernel dependencies and improving security. It's useful for QEMU/KVM users who want simpler, unprivileged network access, and for namespaced environments like rootless Podman.

Categories

networking virtualization daemon

Alternatives

slirp4netns user-mode-linux vde tap-interface
3.1k
30-day installs · #792
13.8k
90-day · #679
55.0k
365-day · #638

Links

Blurb generated by claude-haiku-4-5 on 2mo ago.

Raw metadata 
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  "aliases": [],
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    "slirp4netns",
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  "build_dependencies": [],
  "categories": [
    "networking",
    "virtualization",
    "daemon"
  ],
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  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "User-mode networking daemons for virtual machines and namespaces",
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  "enrichment_fetched_at": "2026-06-20T23:41:06+00:00",
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  "homepage_title": "passt - Plug A Simple Socket Transport",
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  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "GPL-2.0-or-later AND BSD-3-Clause",
  "llm_generated_at": "2026-06-20T23:47:04+00:00",
  "llm_model": "claude-haiku-4-5",
  "name": "passt",
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  "one_liner": "User-mode networking daemon for VMs and Linux namespaces, translating layer-4 sockets without a TAP device.",
  "optional_dependencies": [],
  "rank_30d": 792,
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  "raw_hash": "3e27c4f61c9e9970",
  "recommended_dependencies": [],
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  "ruby_source_path": "Formula/p/passt.rb",
  "tap": "homebrew/core",
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  "uses_from_macos": [],
  "version_head": "HEAD",
  "version_stable": "2026_06_11.a9c61ff",
  "versioned_formulae": [],
  "why_use_this": "Passt eliminates the need for root-owned TAP interfaces and complex network setup when running VMs or containers, reducing kernel dependencies and improving security. It\u0027s useful for QEMU/KVM users who want simpler, unprivileged network access, and for namespaced environments like rootless Podman."
}