HttpWebRequest的401 NTLM Authenticiation [英] HttpWebRequest 401 with NTLM Authenticiation

问题描述

我有一个认证为HttpWebRequest的一个网络服务器的困难。我收到的反应是一个简单的401，我确信我正确设置凭据在C＃的一面，和IIS是否正确设置为允许NTLM身份验证。我不知道这是否重要，但他的电脑是不是在同一个域中的Web服务器。

I am having difficulties authenticating a HttpWebRequest to a webserver. The response I am receiving is simply a 401. I've made sure I set the credentials correctly on the C# side, and IIS is correctly set to allow NTLM authentication. I don't know if this matters, but he computer is not on the same domain as the the web server.

我确信用户名/密码是正确的，但在那里上配置用户需要的任何其他授权设置？

I am sure the user/pass is correct but are there any other authorization settings needed to configure on the user?

如果我启用基本身份验证，并禁用Windows身份验证，要求完美的作品（当然是正确的C＃code的变化）。

If I enable Basic authentication, and disable Windows Authentication, the request works perfectly (with the correct C# code changes of course).

我是什么失踪？

    webRequest.UseDefaultCredentials = false;
    webRequest.PreAuthenticate = true;
    var c = new NetworkCredential("User", "password", "domain");

    CredentialCache credentialCache = new CredentialCache();
    credentialCache.Add(new Uri(Url), "NTLM", c);
    webRequest.Credentials = credentialCache;

继承人在IIS中的我的设置快照。

Heres a snapshot of my settings in IIS.

失败请求跟踪：

推荐答案

与同事的帮助下，我们能够判断出了问题在Windows中处理身份验证的方式。貌似在本地安全设置是错误的。更改本地策略>安全选项>网络访问：共享和本地帐户从游客的安全模式只 - 本地用户以来宾为经典身份验证解决了这一问题。

With the help of a colleague, we were able to determine something was wrong in the way Windows was dealing with the authentication. Looks like a setting in the Local Security was wrong. Changing Local Policies > Security Options > Network access: Sharing and security model for local accounts from Guest only - local users authenticate as Guest to Classic fixed the problem.

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