https://www.ossec.net/
OSSEC - World's Most Widely Used Host Intrusion Detection System - HIDS
Dec 10, 2025 - OSSEC is a multiplatform, open source and free Host Intrusion Detection System (HIDS). You can tailor OSSEC for your security needs through its extensive...
most widely usedintrusion detection systemossecworld
https://www.sans.org/white-papers/33473
Using OSSEC with NETinVM
We've long heard OSSEC was an excellent option for HIDS, but there is scarcity of detailed...
usingossec
https://www.pluralsight.com/labs/aws/setting-up-ossec-to-send-alerts-to-cloudwatch
Setting Up OSSEC to Send Alerts to CloudWatch
Host-based intrusion detection systems provide an added layer of network and file security and monitoring to virtual (and physical!) servers, on the cloud or...
setting upossecsendalertscloudwatch
https://www.linode.com/docs/guides/ossec-ids-debian-7/
Install and Configure OSSEC on Debian 7 | Linode Docs
This guide shows how to install and configure OSSEC HIDS, an open-source, host-based intrusion detection system which provides advanced monitoring functions,...
install and configureossecdebianlinodedocs