Emacs behind HTTP proxy

Question

Emacs is able to access the Internet with packages such as url.el or the W3 web browser.

Also, the Emacs Lisp Package Archive is heavily dependent on package url.el.

Now, how do I configure Emacs to use my HTTP proxy to connect to the Internet in general?

Bonus points for any help with ELPA behind a proxy.

Yes, I've had problems with HTTP proxies before.

Trey Jackson · Accepted Answer · 2009-10-20 15:56:59Z

55

For w3m, this setting has worked for me:

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

answered Oct 20, 2009 at 15:56

Trey Jackson

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7 Comments

Pedro Rolo Over a year ago

@Trey Jackson: What if the proxy requires authentication?

MikeHoss Over a year ago

If you require authentication, Emacs (at least 23.x) will ask you for your username and password, provided you have url-proxy-services set.

grm Over a year ago

Is it possible to make Emacs use IE proxy settings?

Cheeso Over a year ago

@grm - see this question: stackoverflow.com/questions/10050186/…

justinpitts Over a year ago

Just confirmed Emacs 22 will prompt for credentials as well. Thank you @MikeHoss

|

gavenkoa · Accepted Answer · 2018-07-29 00:21:20Z

27

I've got authorization working by:

(setq url-proxy-services
   '(("no_proxy" . "^\\(localhost\\|10\\..*\\|192\\.168\\..*\\)")
     ("http" . "proxy.com:8080")
     ("https" . "proxy.com:8080")))

(setq url-http-proxy-basic-auth-storage
    (list (list "proxy.com:8080"
                (cons "Input your LDAP UID !"
                      (base64-encode-string "LOGIN:PASSWORD")))))

Works for Emacs 24.3. It is based on non-public API tricks, so might not work in another Emacs versions...

edited Jul 29, 2018 at 0:21

answered Sep 9, 2013 at 11:24

gavenkoa

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3 Comments

chris Over a year ago

legend! btw this did not work for emacs 26 on windows, but was fine for 25.3

Levin Over a year ago

this worked for me (emacs 25.1.1 mingw from the gnu mirrors). If you're still playing SO -- I believe you want "10\..*" for the local host, you'll match anything that starts 10 with what you got there.

gavenkoa Over a year ago

@LevinMagruder Updated!

M.W. · Accepted Answer · 2016-07-14 23:40:50Z

14

Emacs populates the url-proxy-services variable from the http_proxy, https_proxy and no_proxy environment variables if they are set.

answered Jul 14, 2016 at 23:40

M.W.

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2 Comments

dpritch Over a year ago

This is totally the way to go

Samantha Atkins Over a year ago

Yes well, it doesn't work in my environment. I think they have some Bluecoat ssl cert also. How is that dealt with?

GLJ · Accepted Answer · 2020-04-13 17:09:14Z

5

This is a bit old, but I had issues connecting as well. One thing I needed to do is add my certificate to the the gnutls-trustfiles in order to connect.

(with-eval-after-load 'gnutls
    (add-to-list 'gnutls-trustfiles "path/to/cert.crt"))
(setq url-proxy-services
   '(("no_proxy" . "^\\(localhost\\|10\\..*\\|192\\.168\\..*\\)")
     ("http" . "proxy.com:8080")
     ("https" . "proxy.com:8080")))

edited Apr 13, 2020 at 17:09

answered Mar 31, 2020 at 16:45

GLJ

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