How do I configure Emacs behind an authenticated HTTP proxy?

Question

There's another question that answers this though it doesn't specify anything regarding proxy authentication.

Its solution is

(setq url-proxy-services '(("no_proxy" . "work\\.com")
                           ("http" . "proxy.work.com:911")))

Answer 1

Nowadays, my approach to the "authenticated proxy problem" is to use CNTLM. It is portable, quite easy to configure and may be run as deamon.