Http Error 401. The Requested Resource Requires User Authentication
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Iis Windows Authentication Asking For Credentials
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each other. Join them; it only takes a minute: Sign up Windows authentication failing in IIS 7.5 up vote 16 down vote favorite 6 I'm building a simple internal application for my company, and it requires Windows Authentication for
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security. All other authentication modes are disabled. I'm stuck in a situation where internet explorer prompts for credentials 3 times, then fails with this error: Not Authorized HTTP Error 401. The requested resource requires user authentication. I then created a bare-bones website to test this out. I created a new site in IIS, put it on its own port (:8111, chosen at random), put one static "default.htm" file in there, disabled anonymous authentication, then enabled windows authentication. kerberos 401 unauthorized Everything else was left at default settings. The port number was assigned because we have multiple sites on this machine all sharing the same IP. Here are a few scenarios: Browsing from the web server itself, to http://localhost:8111/ works fine Browsing from another computer, to http://ServerIPaddress:8111/ works fine Browsing from another computer, to http://ServerName:8111/ FAILS (asks for credentials 3 times, then gives 401 error) I've been searching online and trying to find a solution with no luck thus far. Either I haven't found it, or I don't understand well enough what I'm reading. Any help would be greatly appreciated. iis-7 windows-server-2008 windows-authentication share|improve this question asked Oct 2 '12 at 16:14 Ben Brandt 1,40352038 add a comment| 5 Answers 5 active oldest votes up vote 34 down vote accepted Just worked out the solution with the help of a coworker after 2 days of fighting with this issue. Here is what he wrote: There are 2 providers for Windows Authentication (Negotiate and NTLM). When setting the Website Authentication to Windows Authentication, while Windows Authentication is highlighted, click on the Providers link on the right pane or IIS Manager and move NTLM to the top. By default Negotiate is on top which is why you are getting an authentication prompt. share|improve this answer answered Oct 2 '12 at 18:09 Ben Brandt 1,40352038 1 +1 That did it for me
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Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn http://serverfault.com/questions/470323/kerberos-authentication-failing-with-401 more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer https://robspitzer.wordpress.com/2012/04/02/reset-adfs-iis-permissions/ site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and http error rise to the top Kerberos authentication failing with 401 up vote 2 down vote favorite We have a .NET MVC 3 application deployed in IIS 7 on our Windows 2008 server (let's call it PROD). The application has Anonymous and Windows Authentication enabled - all others are disabled. The authentication providers specified in applicationHost.config are Negotiate and NTLM, in this order. Lately we've started experiencing problems with authentication in http error 401. this app. Users (who are in a different domain than the server) connecting with IE with "Enable Integrated Windows Authentication" option checked get "Not Authorized. HTTP Error 401. The requested resource requires user authentication." message even though they're supplying valid credentials. When accessing application from Firefox the problem does not occur. Also when using IE with "Enable Integrated Windows Authentication" unchecked everything works fine. From what I've read about similar issues over the Internet, I've figured out that we have some problems with Kerberos not being configured properly. It turns out that NTLM authentication works just fine. I've checked the SPNs and they seem to be configured correctly (there is the default configuration as our app is being accessed by the server's netBios name). The funny thing is we have another server (let's call it DEV) that hosts exactly the same app and is in exactly the same domain and has the same authentication and authentication providers configuration and application pools are run under the same accounts and authentication there works just fine. The only difference is that PROD has had .NET 4 installed recently but I don't think this might be an issue. Also PROD hosts this application in IIS in a following vir
requires user authentication” when trying to connect to your ADFS Server from inside the network here’s what you need to do to reset permissions in IIS… Launch the IIS Management Console and browse to Default Website Disable all Authentication options for the Default Web Site as well as the ADFS and LS Virtual Directories Enable Windows Authentication on the Default Web Site. Set Extended Protection to “Accept” Enable Anonymous Authentication on the ADFS Virtual Directory Enable Windows Authentication on the LS Virtual Directory. Set Extended Protection to “Accept” Run an IISRESET To setup your browser to automatically authenticate you while connected to the internal network do the following… Open Internet Options in IE and click on the Security tab Click Local Intranet Click Custom Under the User Authentication section enable “Automatic logon with current user name and password” Click on the Advanced tab Under the Security section enable “Enable Integrated Windows Authentication” More information on this can be found at the following Office 365 Forum post… http://community.office365.com/en-us/f/178/p/6460/30698.aspx Like this:Like Loading... Related ADFSOffice 365Single Sign On Post navigation Previous PostExchange 2010 CoexistenceNext PostOffice 365 Administrators Can’t View Their FOPE Quarantine Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. (LogOut/Change) You are commenting using your Twitter account. (LogOut/Change) You are commenting using your Facebook account. (LogOut/Change) You are commenting using your Google+ account. (LogOut/Change) Cancel Connecting to %s Notify me of new comments via email. Recent Posts Fix Skype for Business Integration with Outlook Steps for Renewing ADFS 3.0 Certificate New Azure AD PowerShell Module and Windows Server 2008 R2 Migrating Public Folders to Exchange 2013 / Exchange Online Af