WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. WireGuard is designed as a general purpose VPN for running on embedded interfaces and super computers alike, fit for many different circumstances. Initially released for the Linux kernel, it is now cross-platform (Windows, macOS, BSD, iOS, Android) and widely deployable. It is currently under heavy development, but already it might be regarded as the most secure, easiest to use, and simplest VPN solution in the industry.
A Reverse Proxy is a web server that can put in front of another web server or a web service. It can encrypt outgoing traffic, act as a load balancer, redirect traffic, and offer protection. Nginx web server can be used as a proxy server in front of traditional servers, but sometimes setting it up can be tedious and cause issues if not done properly.