I think you misunderstand. All I am looking for is a simple way to redirect certain web requests from a device on my internal network to my internal server. I.E. somewebsite.com/somefile.zip gets redirected to internalserver.local/somefile.zip. No ssh, no user specific access, just a simple web file redirection.
Similar to Lan Cache but something I can specify what internet facing files get redirected.
There is a Desktop app I use called Charles Proxy that can do exactly what I am describing but I'm looking for a Docker based version that can do the same thing.