Nginx

As a sophisticated reverse proxy server, Nginx efficiently routes client requests to appropriate backend servers while providing an additional security layer. It handles SSL termination, load distribution, and request filtering, shielding internal infrastructure from direct exposure. This capability allows organizations to scale applications horizontally by distributing traffic across multiple servers. Combined with its web server functionality, Nginx serves as a complete gateway solution for modern web architectures. Available under the BSD license with commercial options from F5, it's trusted for its robust proxy features in enterprise environments.