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Re: Advise for NTLM-Auth

Maxim Dounin
April 18, 2016 09:36PM
Hello!

On Mon, Apr 18, 2016 at 02:28:19PM -0700, Payam Chychi wrote:

> >Maxim Dounin:
> >
> >>Just a side note: NTLM auth is broken by design and violates HTTP
> >>basic rules. Avoid using it if you can.
> >
> >to be clear: I don't care if it's named NTLM or ugly_voodoo
> >
> >The goal is a nginx accesses by a IE/edge browser. Users should not be
> >bothered with authentication
> >as they are already logged on into the windows account.
> >
> >possible?
> >
>
> Im not sure what you do not understand from the reply, NTLM auth is broken.
> This is not about "lets call it Voodoo_melt" and make it work, Windows
> utilizes NTLM, so... what you are trying to use will not work. why? because
> NGINX NTLM does not work.

No, you didn't get it. NTLM http auth itself, as "defined" by
RFC 4559, is broken by design, and it has nothing to do with nginx.
In anything more complex than "a server and directly connected
clients" it's expected to require various NTLM-specific hacks,
quirks, and so on. Because NTLM tries to authenticate connections
instead of requests, thus breaking basic HTTP principles.

The above, actually, is explicitly said in RFC 4559 Errata, see
https://www.rfc-editor.org/errata_search.php?rfc=4559.

And that's why I don't recommend using it if possible. Regardless
of support in particular software.

--
Maxim Dounin
http://nginx.org/

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Subject Author Posted

Advise for NTLM-Auth

A. Schulze April 18, 2016 03:24PM

Re: Advise for NTLM-Auth

Maxim Dounin April 18, 2016 03:48PM

Re: Advise for NTLM-Auth

A. Schulze April 18, 2016 05:00PM

Re: Advise for NTLM-Auth

unclepieman April 18, 2016 05:30PM

Re: Advise for NTLM-Auth

Maxim Dounin April 18, 2016 09:36PM

Re: Advise for NTLM-Auth

unclepieman April 19, 2016 02:14AM

Re: Advise for NTLM-Auth

Max Clements April 19, 2016 02:54PM

Re: Advise for NTLM-Auth

A. Schulze April 19, 2016 03:30PM

Re: Advise for NTLM-Auth

Max Clements April 19, 2016 08:02PM

Re: Advise for NTLM-Auth

Aleksandar Lazic April 19, 2016 03:12AM



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