The Open Security Filter (OSF) is a configuration and management system developed by credativ that is based on Open Source technology...

OpenVPN is software that can be used to easily set up virtual private networks (VPN) via a secure connection.

SpamAssassin is an email filter written in the Perl programming language, which automatically sorts out unwanted messages (spam).

ClamAV is a free virus and phishing filter, and is already included in the range of a large number of Linux distributions as standard.

EJBCA, Enterprise JavaBeans Certificate Authority, is an application for J2EE servers and is a certification body for a public key infrastructure.

ferm is used to write and manage complex firewall rules.