Snort (software)
Snort ids logo.png
Original author(s) Martin Roesch
Developer(s) Cisco Systems
Stable release[1] / January 4, 2018; 5 months ago (2018-01-04)
Written in C
Operating system Cross-platform[2]
License GPLv2+ and commercial[3]

Snort is a free and open source network intrusion prevention system (IPS) and network intrusion detection system (IDS)[4] created by Martin Roesch in 1998.[5] Snort is now developed by Sourcefire, of which Roesch is the founder and CTO,[6] and which has been owned by Cisco since 2013.[7][8]

In 2009, Snort entered InfoWorld's Open Source Hall of Fame as one of the "greatest [pieces of] open source software of all time".[9]


Snort's open source network-based intrusion detection system (IDS) has the ability to perform real-time traffic analysis and packet logging on Internet Protocol (IP) networks. Snort performs protocol analysis, content searching and matching.

The program can also be used to detect probes or attacks, including, but not limited to, operating system fingerprinting attempts, semantic URL attacks, buffer overflows, server message block probes, and stealth port scans.[10]

Snort can be configured in three main modes: sniffer, packet logger, and network intrusion detection.[11] In sniffer mode, the program will read network packets and display them on the console. In packet logger mode, the program will log packets to the disk. In intrusion detection mode, the program will monitor network traffic and analyze it against a rule set defined by the user. The program will then perform a specific action based on what has been identified.[12]

Third-party tools

There are several third-party tools interfacing Snort for administration, reporting, performance and log analysis:

See also


  1. ^ downloads
  2. ^
  3. ^ "Snort license". 
  4. ^ Jeffrey Carr (2007-06-05). "Snort: Open Source Network Intrusion Prevention". Retrieved . 
  5. ^ Staff (2008-04-04). "100 Most Influential People in IT". Retrieved . 
  6. ^ Larry Greenemeier (2006-04-25). "Sourcefire Has Big Plans For Open-Source Snort". Retrieved . 
  7. ^ "Cisco Announces Agreement to Acquire Sourcefire". Cisco Systems. 2013-07-27. Retrieved . 
  8. ^ "Cisco to Buy Sourcefire, a Cybersecurity Company, for $2.7 Billion". The New York Times. Retrieved 2013. 
  9. ^ Doug Dineley; High Mobley (2009-08-17). "The Greatest Open Source Software of All Time". Retrieved . 
  10. ^ Mohan Krishnamurthy; et al. (2008). "4. Introducing Intrusion Detection and Snort". How to Cheat at Securing Linux. Burlington, MA: Syngress Publishing Inc. Retrieved . 
  11. ^ Snort Team (2012-01-01). "Snort Usage". 
  12. ^ Snort team (2013-04-05). "Snort Usage". 
  13. ^

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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