Apache is a free and open-source cross-platform web server software.
Dreamweaver is a development tool for creating, publishing, and managing websites and mobile content.
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.
PHP is a general-purpose scripting language used for web development.
Unix is a family of multitasking, multiuser computer operating systems.