Analyzed
1 day
ago.
based on code collected
2 days
ago.
Project Summary
fwknop stands for the "FireWall KNock OPerator", and implements an authorization scheme called Single Packet Authorization (SPA). This method of authorization is based around a default-drop packet filter (fwknop supports iptables and firewalld on Linux, ipfw on FreeBSD and Mac OS X, and PF on OpenBSD) and libpcap. SPA is essentially next generation port knocking.
In a Nutshell, fwknop...
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has a well established, mature codebase
maintained by a small development team
with increasing Y-O-Y commits -
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took an estimated 21 years of effort (COCOMO model)
starting with its first commit in November, 2008
ending with its most recent commit 3 months ago
Quick Reference
https://github.com/mrash/fwknop
GNU General Public License version 2
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Poor security track-record
Favorable security track-record
Vulnerability Exposure Index
Many reported vulnerabilities
Few reported vulnerabilities
Did You Know...
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compare projects before you chose one to use
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30 Day SummaryJul 28 2026 — Aug 27 2026
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12 Month SummaryAug 27 2025 — Aug 27 2026
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