Proxy

Perl modules Net::ProxyMod and HTTP::Proxy

proxy

Script: proxy.pl

Using invoke-webRequest with proxies.

The 407 Proxy Authentication Required HTTP status.

The HTTP header Via is added by proxies when routing an HTTP message.

The environment variable HTTP_PROXY

In Windows, (if not using Web Proxy Auto Detect (WPAD)), the current proxy settings can be displayed with

netsh winhttp show proxy