The issue focused on setting up multiple HTTP servers for external connections and applying HTTP caching (also known as proxy caching). To properly configure HTTP caching for external connections and proxy caching for internal connections, this guide explains how to configure HTTP caching for external connections and proxy caching for internal connections. You should read this guide before continuing with other guides on HTTP caching and proxy caching. You should also read about proxy caching for websites that support proxy caching. If you're interested in HTTP caching for external connections and proxy caching for internal connections