Apache HTTP Server - is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0.
ModSecurity - Is an open source intrusion detection and prevention engine for Web applications. And is a cross platform Web Application Firewall (WAF) engine for Apache, IIS and Ngix.
FileZilla - is a free software, cross-platform FTP application consisting of FileZilla Client and FileZilla Server
File Transfer Protocol (FTP) - The transfer of files between devices over a network.
XAMPP - is a free and open-source cross-platform web server solution stack package developed by Apache Friends.