This plug-in enhances OpenVPN by adding user name and password authentication. An eurephia user account is a combination of minimum one OpenVPN SSL certificate and a user name with a password assigned. It is also possible to setup several eurephia user names to use a shared OpenVPN certificate.

LAPACK version 3.X is a comprehensive FORTRAN library that does linear algebra operations including matrix inversions, least squared solutions to linear sets of equations, eigenvector analysis, singular value decomposition, etc. It is a very comprehensive and reputable package that has found extensive use in the scientific community.

The Error module provides two interfaces. Firstly "Error" provides a procedural interface to exception handling. Secondly "Error" is a base class for errors/exceptions that can either be thrown, for subsequent catch, or can simply be recorded.

A System Settings module to do color management for monitors, printers, webcams and other devices.

GnuTLS is a portable library which implements the Transport Layer Security (TLS 1.0, 1.1, 1.2, 1.3) and Datagram Transport Layer Security (DTLS 1.0, 1.2) protocols.