Apache is a free and open-source cross-platform web server software.
Bluefish is a free software text editor with a variety of tools for programming in general and the development of websites.
FrontPage is a program for developing and maintaining websites.
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.
Red Hat is an open-source Linux operating system.