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The OSSEC free intrusion detection and host-based intrusion prevention system detects and fixes security problems in real time at the operating system level with functions such as log analysis, file integrity checks, Windows registry monitoring, and rootkit detection. It can be deployed virtually anywhere and supports the Linux, Windows, and macOS platforms.

Disconnect OpenSSH user sessions after a certain period of inactivity with the systemd-logind service.

Restoring identity is an important part of disaster recovery, since it lays the foundation for restoring normality and regular operations. We look into contingency measures for hybrid directory services with Entra ID, the Graph API, and its PowerShell implementation.