tethered 1.0
A firewall inside your Python app, in one line
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List the servers your app may talk to, in one line of Python. Any other connection Python makes is refused before it opens, whether it comes from your own code, a dependency or code an AI wrote. Free and open source, with no proxy to run.
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More like this: all 172 launches in networking and tunneling utilities →
PH · launched Oct 29, 2026 · 3 upvotes (top 10%)
- Security
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- Open Source
- Developer Tools
- GitHub
- Security
Similar launches
See all 71 similar launches →Could you build this?
Partial A basic allowlist that hooks Python socket connections is vibe-codeable, but making it a reliable security boundary that cannot be bypassed by native code, subprocesses, or ctypes requires deep systems and security expertise.
What it would actually take: The easy part is patching socket.connect and related functions in Python. A trustworthy version has to cover C extensions, child processes, ctypes calls, and DNS resolution, then be audited and fuzzed by security specialists. Tests against known bypass techniques and a clear threat model are essential.
Competitors
Other products that read as similar to this one : 71 launches clear the similarity bar, closest 8 shown.
Attention rank: #5 of 72 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 360 days after the earliest competitor.
- py-firewall-network-monitor · github · 2026-10-22 · 58 upvotes · similarity 0.46
- BurrowGate · ph · 2026-09-09 · 4 upvotes · similarity 0.41
- proxy-benchmark · ph · 2026-09-18 · 1 upvotes · similarity 0.41
- CacheGuard · ph · 2026-10-20 · 1 upvotes · similarity 0.40
- tether · github · 2026-10-27 · 28 upvotes · similarity 0.39
- NetBlocker · ph · 2026-09-23 · 2 upvotes · similarity 0.38
- HTTP-network-relay: Tunnel TCP over HTTP using WebSockets · hn · 2025-12-05 · 5 upvotes · similarity 0.38
- Fence · hn · 2026-01-20 · 78 upvotes · similarity 0.38
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