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Snort

snort.org

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Spec score 7.7 #14 of 39 in Intrusion Detection and Prevention Software

Spec sheet

Purpose
Snort analyzes network traffic using rules to identify malicious activity, generate alerts, and optionally stop matching packets inline.Read 30 Sep 2026 · snort.org
Integrations
The site describes integrators as companies distributing Snort or Snort rules in commercial offerings, including vendors, MSSPs, and SIMs.Read 30 Sep 2026 · snort.org
Support
Subscribers can submit false-positive or false-negative reports directly to Talos for support, with a ticket assigned for follow-up.Read 30 Sep 2026 · snort.org
Community help
The Snort Team, Talos, and others monitor Snort mailing lists and an IRC channel for questions and comments.Read 30 Sep 2026 · snort.org
Community rules
The Community Ruleset is freely available, Talos certified, and updated daily.Read 30 Sep 2026 · snort.org
Detection
Snort can perform protocol analysis and content matching to detect attacks and probes including buffer overflows, port scans, CGI attacks, and SMB probes.Read 30 Sep 2026 · snort.org
Download and deployment
The maker provides Snort 3 source downloads and documents installation guides for CentOS Stream, Oracle Linux, and FreeBSD.Read 30 Sep 2026 · snort.org
Modes
Snort can operate as a packet sniffer, packet logger, or network intrusion prevention system.Read 30 Sep 2026 · snort.org
Ownership
The site states that Sourcefire was founded in 2001 and acquired by Cisco Systems on October 7, 2013.Read 30 Sep 2026 · snort.org
Rule freshness
The Subscriber Ruleset provides the same ruleset developed for Cisco customers, with access 30 days earlier than registered users and coverage in advance of exploits.Read 30 Sep 2026 · snort.org
Sensor limits
A subscription covers only the sensors whose licenses were purchased, and Snort defines a sensor as one physical hardware device.Read 30 Sep 2026 · snort.org
Snort 3
Snort 3 features multithreaded packet processing, improved scalability, and a plugin system with more than 200 plugins.Read 30 Sep 2026 · snort.org
Subscriber rules
Talos develops, tests, and approves Subscriber Rules, which subscribers receive in real time as they are released.Read 30 Sep 2026 · snort.org

Plans and prices

Community Ruleset Free GPLv2 Talos-certified rules; updated daily; subset of the Subscriber Ruleset Read 30 Sep 2026 · snort.org
Snort engine Free GPL v2 software; derived applications redistributed under GPL must provide complete source code Read 30 Sep 2026 · snort.org
Personal $29.99 a year One-year subscription; $29.99 each Per sensor; home network or educational use only; rules available upon release, 30 days faster than registered users Read 30 Sep 2026 · snort.org
Business $399 a year One-year subscription; $399 per sensor Per sensor; production or lab use; no redistribution except as allowed by the license; priority response for false positives and rules Read 30 Sep 2026 · snort.org

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