A Windows Challenge/Response (NTLM) header A Negotiate WWW-Authorization header (known as Pre-Authentication) Note There are many reasons a user might be prompted for credentials in Internet Explorer that are outside the scope of this article. See the More information section ...
Symptoms Assume that you try to upload a file by using an XMLHttpRequest object in Level 2 specification in Internet Explorer 10. The file upload cannot be finished if the POST receives a 401 authentication challenge. The upload either freezes indefinitely or times out if a 401 ch...
某些HTTP 服务器和代理在允许访问 Internet 上的资源之前需要身份验证。 Microsoft Windows HTTP 服务(WinHTTP)函数支持 HTTP 会话的服务器和代理身份验证。 关于HTTP 身份验证 如果需要身份验证,HTTP 应用程序将收到状态代码 401(服务器需要身份验证)或 407(代理需要身份验证)。 除了状态代码,代理或服务器还发送一个...
However, Windows has a special case when you do NTLM authentication on the local computer (i.e. loop back connection) that affords protection against authentication reflection attacks. Part of the NTLM authentication process centers on a challenge issued by the destination compute...
401 Access denied The request hasn't been applied because it lacks valid authentication credentials for the target resource. 403 Forbidden The server understood the request but refuses to fulfill it. 404 Not found The origin server didn't find a current representation for the target res...
When I try to connect to Reporting Services via SSMS using Windows Authentication (signed on as Administrator) I get "Cannot connect to MYMACHINESQL2005. The request failed with HTTP status 401: Unauthorized.(Microsoft.SqlServer.Management.UI.RSClient)" From the logs, #Software: Microsoft Internet...
身份验证目标是服务器。 指示已收到 401 状态代码。 WINHTTP_AUTH_TARGET_PROXY 身份验证目标是代理。 指示已收到 407 状态代码。 返回值 如果成功,则返回TRUE;如果失败,则返回FALSE。 要获得更多的错误信息,请调用 GetLastError。 下表标识了返回的错误代码。
419 Authentication Timeout (not inRFC 2616) Not a part of the HTTP standard, 419 Authentication Timeout denotes that previously valid authentication has expired. It is used as an alternative to 401 Unauthorized in order to differentiate from otherwise authenticated clients being denied access to spe...
您可以使用 Negotiate 或 Windows Challenge/Response (NTLM) Windows 驗證,設定安裝 IIS 以回應的電腦。 如果 IIS 設定為使用 Negotiate for Windows 驗證,用戶端可以使用 Kerberos 或 NTLM 進行驗證。 如果 IIS 設定為使用 NTLM 驗證,則只能使用 NTLM 驗證,且不支援 Kerberos 驗證。
This post shows what good, working HTTP requests and responses look like when Windows Authentication using Kerberos and NTLM is used successfully. The Kernel Mode aspects aren't as obvious at this level, with the exception of the NTLM Type-2 Message (the challenge) sent in the respon...