ossec
OSSEC is an Open Source Host-based Intrusion Detection System. It performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, real-time alerting and active response. It runs on most operating systems, including Linux, OpenBSD, FreeBSD, Mac OS X, Solaris and Windows
open-source security hardening linux windows solaris osx bsd
TeamPass
TeamPass is a Collaborative Passwords Manager. Its aim is to provide the ability to share password items through a secured and managed environment.
linux windows osx bsd solaris open-source security
Vault
Manage Secrets and Protect Sensitive Data. Secure, store and tightly control access to tokens, passwords, certificates, encryption keys for protecting secrets and other sensitive data using a UI, CLI, or HTTP API.
linux windows osx bsd solaris open-source comercial security