Anyone aware of how to get the ASP.NET Dev Server to challenge for basic authentication credentials instead of assuming my current login?
If using Cassini then according to paragraph at bottom of this link - Limitations of the Cassini Web Server, you cant.
If using IIS, then update IIS authentication.
In IIS,
in the virtual directory of your site right click on your virtual directory,
select the Directory Security tab
select Edit button next to Anonymous access and authentication control
uncheck allow anonymous and integrated windows authentication
check basic authentication
Not an answer to your question, per se, but consider configuring your web project's properties to "Don't open a page. Wait for a request from an external application", and then hit your server with a browser that's been launched with alternative credentials.
Do you have Integrated Windows authentication checked off under Directory Security in IIS, instead of (or in addition to) Basic?
Related
Newly installed IIS on a clean windows Server 2008 R2. Installed all security option. Then for the default web site authentication, enabled windows authentication and disabled all others. Then when access the default page iisstart.htm, it should give me a popup for authentication message.
but when I access the test page like: http://localhost/iisstart.htm, there is no popup. same as enabled Anonymous Authentication.
How to fix it?
I think your webservice is accessing files via your app pool identity, remove this user from the security access list on the file.
If you go to "localhost", then IE will see this as part of the "Intranet Zone". In the "Intranet Zone", IE will by default automatically send your current credentials to sites that use "Windows Authentication".
The result is that everything is probably working correctly.
First of all make sure you check if the app pool user can access the files of the website (NTFS security settings). See: IIS7 Permissions Overview - ApplicationPoolIdentity
After that (and double checking that only Windows Authentication is enabled in IIS) take into account that your URL must not contain dots! You can make an extra binding (see: https://technet.microsoft.com/en-us/library/cc731692(v=ws.10).aspx) that contains only letters and numbers and then add that binding to your local hosts file (open a text editor as administrator and then edit the file hosts in C:\Windows\System32\drivers\etc) to check.
Can you please post a small explanation of the prerequisites of using Windows Authentication?
I know that you have to turn Windows Authentication on from web.config or IIS and define domain.
Does the web server have to be connected to the Active Directory server or not, and how to get user info from Active Directory like name and description?
You don't have to be on a domain. The local server user accounts can be used with windows authentication. If the machine is on a domain, then either AD users OR local users can be used with windows authentication.
The minimum that has to be in place to use windows authentication in asp.net is that IIS has to have Windows Authentication enabled for the web site. IIS can still have other authentications enabled for the site too, even anonymous authentication can be used in conjunction with windows auth... as long as windows authentication is enabled also asp.net can use it.
Otherwise, your question is too broad for a good answer here. Authentication in asp.net is a very big topic; and when you add AD to the mix it gets bigger. I recommend checking out the MSDN documentation, reading through it, experimenting with it, then coming back here with more specific questions.
This application is using windows integrated authentication in IIS. No anonymous login.
It's also using an application pool defined to log on with a domain user.
If a try to browse any page, it pops up the username and password dialog box and even though I entered a valid user (including the domain administrator) it doesn't log on into the app. I keep getting the username/password dialog. If I logon locally (in the IIS box), it works OK.
Also, if I change the application pool to use Network Services, it works OK.
The domain user is already a member of the local IIS_WPG group in the IIS box.
Am I missing something here?
If you use a domain account for the Application Pool you have to run a series of scripts on the domain controller. So, apparently it's not recommended to use a domain account, rather a local server account. Microsoft has this issue documented on a case:
http://support.microsoft.com/default.aspx/kb/871179
I suspect the NTFS file persmissions on the .aspx files don't allow the users you are logging in as the needed access to read/execute them. What are the file permissions on the files you are trying to view? What do your authorization and authentication elements in web.config look like?
This sounds like it's related to the privilges assigned to the domain user. i.e. whether they, or indeed the server, are permitted to impersonate the user that is logging in. Or, something regarding "Trusted for delegation" in the server's settings in AD. Either way, you'll probably get a better response on serverfault =)
Try entering the same user of the appPool as the anonymous user (Web Site Security tab)
I had the same user/pwd Popup problem in Svr 2003.
I solved it by CHECKING ANONYMOUS ACCESS in directory security of DEFAULT WEB SITE.
It promps you if you want to also affect your sites you click OK.
That did it.
I just uploaded a project to my hosting, is a asp.net mvc project with authentication.
Just when i enter the web internet explorer prompts a credential windows. If I cancel, the web works correctly. The web works correctly also in local using the visual studio server.
More information:
"Allow Anonymous Access" is checked and the "Basic Authentication" too, but the promt is shown with Basic authentication checked or not.
Also I uploaded a very basic mvc application with authentication and the prompt is not showing, so it does'nt seem's to be an IIS configuration problem.
Also the prompt is showing in both Internet Explorer and firefox, but isn't in Chrome.
Do you have any clues?
Thanks!
It sounds like you have set the authentication mode to Windows? Can you check the Web.config file. If you are intent is to use Forms authentication, you should change it accordingly
Most likely is that you need to allow anonymous access in the IIS configuration manager. Even if your web.config specifies Forms Authentication (or Authentication is set to "None") if IIS is set to disallow anonymous access, then users will be prompted by IIS before the ASP.Net authentication mechanism kicks in.
Edit
I see this behavior if the "Allow Anonymous Access" is checked and the "Windows Authentication" is also checked.
This is all under the "Directory Security" task in the properties for your web site in the IIS manager.
See info below about IIS:
IIS Authentication
Anonymous
Anonymous authentication gives users access to the public areas of your Web site without prompting them for a user name or password....
Basic(uncheck this)
IIS implements Basic authentication, which is part of the HTTP 1.0 specification, using Windows user accounts. When using Basic authentication, the browser prompts the user for a user name and password. This information is then transmitted across HTTP where it is encoded using Base64 encoding. Although most Web servers, proxy servers, and Web browsers support Basic authentication, it is inherently insecure. Because it is easy to decode Base64 encoded data, Basic authentication is essentially sending the password as plain text.
http://msdn.microsoft.com/en-us/library/aa292114%28VS.71%29.aspx
For this to work only anonymous access should be checked in IIS. Otherwise the browser will try to authenticate if possible.
If you are serving "static content" with your site, the default webroot from which the application is configured under needs these settings as well. (Usually "Anonymous" as only-checked-box).
I have authentication mode set to forms in my asp.net web.config but am still getting a windows login prompt when i browse to the website.
Could authentication mode be set elsewhere, in IIS for example? My site runs on IIS 6.
Thanks.
This could be because the permissions on the folder that is being served is not allowed to be accessed by the user running the web site
I have had issues where the authentication was set to forms and the directory security was set to allow anonymous, but some resources (images in my particular case) did not have the proper permissions to allow the anonymous user to read them.
The effect is that the user was prompted to login so that the graphics could be displayed, after which the form was displayed and the user logged in (again) with the intended form.
Sounds like windows permissions problem.
Windows permissions will always override anything that you have set up in aspnet.
I would start by looking at "anonymous access" permissions in IIS admin, then work your way through the file system.
You have configured anonymous access in IIS Administrator, but the IIS user does not have permission to access the filesystem, defaulting to the login dialog to authenticate as Windows user.
As it happens a colleague updated my machine to .NET Framework 3.5 SP1 whilst I was away. So I compiled my project and released onto the server which does not have SP1 installed and the above happened.
I've installed SP1 on the server and it's working fine now.
Thanks for all your input.
Just to clarify : the login popped up because the application was unable to load a file due to the problem described in the following: Link