IIS7 automatically redirect to null (in IE) - asp.net

I'm developing an ASP.NET web site with VB. My web site is work perfectly with Firefox. But, with IE, it's redirect automatically to null.
When I try
http://localhost/mysite/Default.aspx
IE6/IE7 automatically redirect to
http://localhost/mysite/null
But, there is no problem with pages inside sub folders. When I try with
http://localhost/mysite/forum/
It's work perfect. I just can't browse pages in root folder.
What should I do? I'm using IIS7 and .net framework 2.0.
Thanks

Huh... that's strange. "null" isn't really a normal place for web traffic to get redirected. Can you think of anywhere in your code/IIS settings that might redirect to a page called "null" Also strange is the firefox/ie difference.
Does it have something to do with authentication? IE might have automatic Windows authentication causing your application to behave differently because it thinks you are logged in. Try turning off Windows Authentication in IIS.
Alternatively, can you debug your code? Does any code execute on your home page before the redirect occurs?

First uncheck the show error frinedly message in the internet explorer in tools->Internet OPtions->Advance then see.
Another thing if you are redirecting with some dynamic link? And that is casuing it to redirect on null.
Check your code. I think that there may be some problem in your code.

Related

Safari, ASP.NET 4, and LinkButton

I have an ASP.NET Web Application using .NET Framework 4 and it is working fine on all browser when I test it locally using my Visual Studio Pro 2010, but when we deploy it to our server (IIS7 on Windows Server 2008 R2), the LinkButtons of my Web Application is not working correctly on Safari Browser on all platforms.
What was happening was when the LinkButton has a function that uses Response.Redirect, it somewhat clears the session or doesn't save it. I can check this since when I redirect to another page, I save the values inputted to a session first before redirecting, and validate it to the redirected page and if there's no session, bring it back to the previous page.
I have already implemented this fix to add a .browser file to my webapp but it doesn't fix my problem. I also tried this answer from SO to add a Page_PreInit and a configuration but to no avail.
My IIS Configuration has enabled for both Session and Cookies, and I honestly do not see why it will only affect Safari Browser if it is a server configuration error.
I've been working on this bug for a whole day and I can't still fix this. Please help, thanks in advance.
Update: I forgot to mention that my website is inside an iframe, after researching further I have found this question that says that Safari doesn't allow Third-Party Cookie by default. Now I can't use the said fix since my application is in ASP.NET not in PHP.

ASP.NET development server cannot find localhost ?

I have a web site opened in VS 2008 . I try to run it from VS2008 and the asp.net development server starts up.But the browser returns the following error
Firefox can't find the server at www.localhost.
The web address in browser is http://localhost:2921/WebSite2/Default2.aspx
There is no such thing as www.localhost, and nothing built-in to asp.net will redirect you automatically (unless you tell it to). Sounds like you have code that looks at the url and redirects to a www version if you're not there. You shouldn't do that, and instead use relative urls internally that work no matter which way a user hits a page.
Check following :
Are your proxy settings correct in your Firefox browser. Firefox->Tools->Options->Network->Settings.
Are you browsing the correct address, everytime you run/debug your website a dynamic port is assigned unless explicitly specified.

ASP.NET Development Server 403 Error

I'm developing a web application in Visual Studio 2010 on Win 7, and now seem to have a new error that has just popped up. When I try to access the site which uses Windows Authentication, in Firefox, I get a 403 error, with no subcodes. Up until this poijnt, it has been working this way just fine. Firefox prompts me for my credentials, and I enter them and then I get the 403 error. No problems with it in IE, just Firefox.
I've checked the network-trusted-ntlm-automatic key in Firefox and deleted my session cookie, but still no luck. The problem seems to be limited only to Firefox.
If I set the app to be Anon access, it works with no problems, but the app needs to be Windows Auth.
I attempted Local IIS, but there wasn't an option for Windows Auth for the app on my local IIS, so that kind of removed that option for the time being.
Any ideas out there for how to get this working correctly again? I'll take answers that get me the Windows Auth option in my local IIS as well, because that would also fix the problem for me.
Check to make sure directory browsing is not enabled for the site. Also, make sure your default documents are setup so when you go to: http://www.yoursite.com/ (notice the slash at the end of the url) a default document is loaded. I have seen in some cases where IIS thinks you want to browse the directory rather than load a page. See if you still get the 403 error by going to a specific page.
I'm running windows 7, 64bit with IIS 6.1.
To turn on Windows Authentication, go to Control Panel -> Administrative tools and select IIS Manager.
In the left panel, expand Sites, Default Web Site, and select your Virtual Directory. You should see Asp.Net in the top panel and IIS in the middle. The first icon under the IIS section is Authentication, double click this. You can then disable annon and enable windows by selecting from the drop down list and clicking Enable / Disable from the actions on the right side of the page.
Hope this helps.
After some digging I finally found the answer, but it wasn't where I expected it.
I was digging through Event Viewer trying to figure out why I kept getting Account Lockout messages when trying to load the site with Firefox and did some searching came across an article that specified how to add multiple servers to the Firefox network.automatic-ntlm-auth.trusted-uris key in about:config.
I had specified:
http://host1; http://host2
and instead should have separated with commas
http://host1, http://host2
I changed it to commas and reloaded and it is now working correctly with the Windows Authentication in Firefox.
Hopefully someone else finds this particular fix useful. Small typo, big headache.

ASP.NET login control mysteriously stops working

I'm using the ASP.NET Login control and have been doing so for a couple of years on a particular site with success. Out of the blue, in the dev environment, this control has stopped working and is now bouncing me back to the login page.
Using source control I've reverted recent changes that might have been the cause but no luck. I've stepped through the code and have checked that the e.Authenticated property is correctly being set to true and that the ReturnUrl is correctly specified on the params.
Any ideas about where to look next to try and figure this out?
After logging in are you being redirected to a page that you don't have authorisation for?
I would check the following...
Cookies still set in the browser
SSL settings in conjunction with http
not forwarding onto https
Cert issues (old, new, expired)
Changes in the domain that the user
is authenticating to
Essentially, check everything except
your code, it works like you said.
;-)

Authentication dialog when running with Visual Studio web server

When using Visual Studio's built in web server, every time I make a page request the standard login box pops up and asks for credentials. It doesn't work if I actually put in my credentials, so I just have to hit cancel 5 times so it will go away.
When I run the application through IIS (locally or on test server) it works just fine (no login box comes up).
Anyone know how to fix this or have any idea what might be causing it?
I assume you mean JavaScript alert box-looking login dialog, right? This dialog pops up when you make a request to a portion of website where anonymous access is disabled from IIS. It is different from ASP.NET authentication.
Do you have some portion of web site protected? Or are you making any HTTP request to external sites, like images and etc?
If your page looks ok after hitting cancel multiple times, it must be one of those HTTP request to protected file like images, css, js or whatever.
I'd look in Fiddler or Firebug to see if any request is failed when you hit cancel in that login dialog.
I'd also try clearing cache/authenticated session on the page that runs on IIS to see if it actually shows you that login dialog.
I had this same issue. However, my solution was different and the issue seemed different as well.
I had been working on a ASP.NET 2.0 web application, using VS 2008. Everything was working fine with the built-in IIS server. I hadn't opened this project for about a week and then when I chose "View in browser" in VS, I was prompted for my windows login creds. This project never did this before, so I was a bit baffled. I checked all the web.config settings and everything seemed fine. My project settings seemed correct as well. I decided to test the project by opening this same project in VS on a separate dev box on my network using a network path. I again chose "View in browser" and it worked fine. No logon prompt.
This told me that the issue wasn't with the actual web project itself, rather my dev environment. I checked all my browser settings as suggested above, and they were correct. I then compared my project settings while I had the same project (same physical files) opened in both dev boxes. I noticed a difference...
Under the Start Option in the Property Pages, the Web Server was set to use the Default Web server in both cases. However, on the box that was asking for my creds, the NTLM Authentication checkbox was selected. I unselected this and it resolved the issue.
I'm not sure how this was possible since I was opening the same project files, and would assume the project settings would be exactly the same. And the fact it was working fine a week ago really perplexed me. I chalked it up to an issue with VS 2008 on the box with the issue. I hope this helps anyone else that may be running into this issue.
This was because localhost was not in my trusted sites so it wouldn't do automatic NTLM authentication... I'm not sure why it was that way, but it was... adding localhost to the list fixed it.
In your project, there should be a vwd.webinfo file.
The following lines control authentication when debugging (in IISExpress). Set as follows to avoid all dialogs.
<VisualWebDeveloper>
<iisExpressSettings anonymousAuthentication="enabled" windowsAuthentication="disabled" useClassicPipelineMode="false"/>
</VisualWebDeveloper>
If windowsAuthentication="enabled" you may still get a dialog, even if anonymousAuthentication="enabled" :-)

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