Project Summary
netsniff-ng is is a free, performant Linux network analyzer and networking toolkit.
The gain of performance is reached by zero-copy mechanisms, so that the kernel does not need to copy packets from kernelspace to userspace and vice versa.
netsniff-ng consists of much more than only a network analyzer. Next to the zero-copy sniffer itself, further tools like trafgen, a powerful zero-copy network packet generator, or ifpps, a tool that provides top-like kernel networking statistics, and curvetun, a lightweight curve25519-based multiuser IP tunnel, are being shipped.
In a Nutshell, netsniff-ng...
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has a well established, mature codebase
maintained by a small development team
with stable Y-O-Y commits -
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took an estimated 5 years of effort (COCOMO model)
starting with its first commit in September, 2009
ending with its most recent commit 3 months ago
GNU General Public License v2.0 only
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Commercial Use
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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
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Vulnerability Exposure Index
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30 Day SummaryAug 17 2025 — Sep 16 2025
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12 Month SummarySep 16 2024 — Sep 16 2025
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