OSSEC (Open Source HIDS SECurity) is a free, open-source host-based intrusion detection system (HIDS). It performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. It provides intrusion detection for most operating systems, including Linux, OpenBSD, FreeBSD, OS X, Solaris and Windows. OSSEC has a centralized, cross-platform architecture allowing multiple systems to be easily monitored and managed. OSSEC has a log analysis engine that is able to correlate and analyze logs from multiple devices and formats.
OSSEC is a full platform to monitor and control your systems. It mixes together all the aspects of HIDS (host-based intrusion detection), log monitoring and SIM/SIEM together in a simple, powerful and open source solution. The development version is hosted on GitHub and just a simple git clone away. OSSEC comes with a modified version of zlib and a small part of openssl (sha1 and blowfish libraries) This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit ( This product includes cryptographic software written by Eric Young ([email protected]) This product include software developed by the zlib project (Jean-loup Gailly and Mark Adler) This product include software developed by the cJSON project (Dave Gamble) Atomicorp hosting the annual OSSEC conference. Presentations for the 2019 conference can be found at OSSEC is licensed under the GNU General Public License version 2 (GPLv2).
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OSSEC (Open Source HIDS SECurity) is a free, open-source host-based intrusion detection system (HIDS). It performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. It provides intrusion detection for most operating systems, including Linux, OpenBSD, FreeBSD, OS X, Solaris and Windows. OSSEC has a centralized, cross-platform architecture allowing multiple systems to be easily monitored and managed. OSSEC has a log analysis engine that is able to correlate and analyze logs from multiple devices and formats.
== History == In June 2008, the OSSEC project and all the copyrights owned by Daniel B. Cid, the project leader, were acquired by Third Brigade, Inc. They promised to continue to contribute to the open source community and to extend commercial support and training to the OSSEC open source community.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).