Crowdsec

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Crowdsec

https://crowdsec.net/
Firewall and behaviour detection system utilising a shared IP reputation database

Crowdsec is a firewall and behaviour detection system that uses a shared IP address reputation database in order to identify potential threats.

User can instruct Crowdsec to watch certain logs, including both operating system logs and logs for specific applications. These are analysed for potential security threats, and the source IP address of any suspicious activity may be uploaded to a shared reputation database. Likewise, the user can download this shared database to benefit from lists of known suspicious hosts.

Crowdsec includes so-called 'bouncers' to block certain IP addresses from accessing services, thus forming a reputation-based firewall.

As the bouncer and detection components are separate programs and can remotely communicate, Crowdsec may be appropriate for embedded applications where the host to be protected is not powerful enough to detect potential threats itself; the log analysis can be done on another, more powerful system.

Documentation

Documentation for Crowdsec is available at https://doc.crowdsec.net/

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