Apache is a free and open-source cross-platform web server software.
FreeBSD is a free and open-source Unix-like operating system.
Mod_python is an Apache HTTP Server module that integrates the Python programming language with the server. It is intended to provide a Python language binding for the Apache HTTP Server.
OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.
Python is an interpreted and general-purpose programming language.