p0f

Install command: 
brew install p0f

Versatile passive OS fingerprinting, masquerade detection tool

https://lcamtuf.coredump.cx/p0f3/

License: LGPL-2.1-only

/api/formula/p0f.json (JSON API)

Formula code on GitHub

Bottle (binary package) installation support provided for macOS releases:

Intel x86_64 big sur, catalina, mojave
Apple Silicon big sur

Current versions:

stable ✅ 3.09b

Analytics:

Installs (30 days)
p0f 44
Installs on Request (30 days)
p0f 44
Build Errors (30 days)
p0f 0
Installs (90 days)
p0f 98
Installs on Request (90 days)
p0f 98
Installs (365 days)
p0f 411
Installs on Request (365 days)
p0f 410
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