Class::EHierarchy is intended for use as a base class for custom objects. The objects need one or more of the following features: orderly bottom-up destruction of objects, opaque objects, class-based access restrictions for properties and methods, primitive strict property type awareness, and alias-based object retrieval.
WD Arkeia Free Version is a no-cost version of WD Arkeia network backup specifically for small networks. It allows an administrator to backup and restore files via a WebUI. This edition has the option to backup up to two machines to a 250GB disk storage or tape drive. It allows you to backup Linux machines, Windows desktops, Mac desktops, FreeBSD servers, and more.
autofwd is an automated firewalling daemon intended to block hosts performing unwanted acts. While it was designed to be used to thwart hosts running dictionary attacks on logins (of any service), it can be used for just about anything. The external commands it runs are configurable, allowing you to take additional actions against offending hosts such as running an nmap OS fingerprint before firewalling, or just silently logging the event.