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Re: Problem with NTLM proxy authentication

From: Daniel Stenberg <>
Date: Mon, 1 Sep 2014 23:28:30 +0200 (CEST)

On Mon, 1 Sep 2014, Ulrich Telle wrote:

Just to clarify a detail on the log you posted, in case it wasn't absolutely

> Header out: GET HTTP/1.1
> Proxy-Authorization: NTLM
> NVlS

This is the request that should be the last and fine request, ending the NTLM
"handshake" and yet...

> Header in: HTTP/1.1 407 authenticationrequired

The proxy rejects it, which makes libcurl say:

> Text: NTLM handshake rejected
> Text: Authentication problem. Ignoring this.

It is really not easy to say why it does this. Is the user or password using
any "fun" unicode letters ? Is this using NTLMv2 ?

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Received on 2014-09-01