What is ProxyPass?
ProxyPass is a directive originally used in the Apache HTTP server—and later supported by NGINX—to control and manage proxying requests from one server to another.
The ProxyPass directive allows a web server like Apache or NGINX to act as a reverse proxy by forwarding incoming requests to another web server, typically on a different machine or network.
The ProxyPass directive is typically used to route incoming HTTP or HTTPS requests to another server or web application running on a different port or a different server. It can also be used to load balance incoming requests across multiple backend servers.
This same function may also be performed by modern, dedicated proxy servers like Envoy Proxy.
For more information, read our Learning Center article on Envoy Proxy