I've read about the app_offline.htm file which can be placed within the root of a .NET 2.0 application which will in essence shut down the application and disable any other pages from being requested.
I've placed the file in the root, and my site still loads. I went into default documents in IIS and set it to app_offline.htm and the site still loads (this might have been a caching issue though)
Anyway, has anyone run into issues using this? Am I doing something wrong?
I have used the extremely handy app_offline.htm trick to shut down/update sites in the past without any issues.
Be sure that you are actually placing the "app_offline.htm" file in the "root" of the website that you have configured within IIS.
Also ensure that the file is named exactly as it should be: app_offline.htm
Other than that, there should be no other changes to IIS that you should need to make since the processing of this file (with this specific name) is handled by the ASP.NET runtime rather than IIS itself (for IIS v6).
Be aware, however, that although placing this file in the root of your site will force the application to "shut down" and display the content of the "app_offline.htm" file itself, any existing requests will still get the real website served up to them. Only new requests will get the app_offline.htm content.
If you're still having issues, try the following links for further info:
Scott Gu's App_Offline.htm
App_Offline.htm and working around the "IE Friendly Errors" feature
Will app_offline.htm stop current requests or just new requests?
Make sure your app_offline.htm file is at least 512 bytes long. A zero-byte app_offline.htm will have no effect.
UPDATE: Newer versions of ASP.NET/IIS may behave better than when I first wrote this.
UPDATE 2: If you are using ASP.NET MVC, add the following to web.config:
<?xml version="1.0"?>
<configuration>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
</system.webServer>
</configuration>
Note that this behaves the same on IIS 6 and 7.x, and .NET 2, 3, and 4.x.
Also note that when app_offline.htm is present, IIS will return this http status code:
HTTP/1.1 503 Service Unavailable
This is all by design. This allows your load balancer (or whatever) to see that the server is off line.
Possible Permission Issue
I know this post is fairly old, but I ran into a similar issue and my file was spelled correctly.
I originally created the app_offline.htm file in another location and then moved it to the root of my application. Because of my setup I then had a permissions issue.
The website acted as if it was not there. Creating the file within the root directory instead of moving it, fixed my problem. (Or you could just fix the permission in properties->security)
Hope it helps someone.
Make sure that app_offline.htm is in the root of the virtual directory or website in IIS.
Make sure filename extensions are visible in explorer and filename is actually
app_offline.htm
not
app_offline.htm.htm
I ran into an issue very similar to the original question that took me a little while to resolve.
Just incase anyone else is working on an MVC application and finds their way into this thread, make sure that you have a wildcard mapping to the appropriate .Net aspnet_isapi.dll defined. As soon as I did this, my app_offline.htm started behaving as expected.
IIS 6 Configuration Steps
On IIS Application Properties, select virtual Directory tab.
Under Application Settings, click the Configuration button.
Under Wildcard application maps, click the Insert button.
Enter C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll, click OK.
Related
Deployed an MVC5 site on IIS7.5 and receive this error when trying to access remotely:
403 - Forbidden: Access is denied.
From the server itself, I do not receive the error.
I tried the common suggested fixes like adding
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
to web.config, and running aspnet_regiis for version 4.0.30319, but nothing works.
Months back I had deployed another MVC site (though it was MVC version 3), and it is up and running, without this nonsense. I can't remember exactly what was done to successfully deploy, but I don't recall headaches like this. Just out of speculation this wasn't due simply to the newer version of MVC, I copied and pasted the folder of the working MVC3 web app, converted it to an application through IIS, used same app pool, and... receive the remote 403 error on it. So with an exact copy giving a 403, while the app that I copied works fine, tells me there's some IIS setting I might be missing? Obviously the web.configs are exactly the same. Folder permissions look the same. I put a test html page inside the web app folder, and I can access that through a browser remotely. I don't know, I don't spend too much time in IIS configuration hell, and it's frustrating beyond belief. If anyone has any ideas...
Since you said that it worked locally the issue must be here:
Check your App_Start/BundleConfig.cs file for css references which match the physical folder path of the project.
Here is an example:
bundles.Add(new StyleBundle("~/Content/bootstrap").Include("~/Content/bootstrap/less/bootstrap.css"));
As you can see, /Content/bootstrap is also a folder path. What you have to do is, rename this style bundle to something else. Say, "~/Content/bootstrap-css". Basically, it shouldn't match a physical folder path.
I had this problem, it works locally but not on the server. So, it should help!
Cheers!
Check the Basic Settings for your domain in IIS. Set it to DefaultAppPool. This resolved the same issue for me.
Ok, I have scoured online resources and applied all the suggested solutions.
I am setting up a simple website on Windows Server 2008 R2 under IIS 7.5 using the "ASP.NET v4.0" pool. I am setting this up as an application under Default Web Site with a different root. I keep getting the 403 Forbidden error.
I have:
Installed asp.net using aspnet_regiis.exe -i (many times)
Made sure my root directory (physical path) has permissions for
"IIS_IUSR" and "IUSR" users.
Made sure "Anonymous Authentication" is enabled and set to "Application Pool Identity"
I have restarted IIS numerous times
I have checked and double-checked every other configuration.
What's strange is that I have another application under Default Web Site and it works just fine.
Any suggestions will help. This shouldn't be so hard unless I am missing something obvious.
Ok, I am quite embarrassed but the over sight was that "Require SSL" was checked by default and that is the place I did not check. I guess it is because an SSL is bound to the Default Web Site. Removing that check made it work.
Hopefully this will help someone else.
Haha you think that is embarrasing! This is probably the 1000th webserver I've installed... 30mins of 403s!! I can't figure it out. There is a stub default.asp in there.. permissions all correct... everything!
I turned on "directory" browsing in desparation of flicking around.
default.asp.txt is sitting there..... DOH.
Need to turn OFF "known file types"... why is that setting like that anyway?
Another possible issue which leads to a 403 error:
The Global.asax file is missing.
For me the answer was in handler mappings section of IIS 7.5
Adding the following to web.config enabled all the aspx pages to work correctly
<configuration>
...
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<handlers accessPolicy="Read, Script" />
...
</system.webServer>
</configuration>
Grant permission to the Network Service user in the NTFS folder
Also check the .Net authorization rules:
Check that IP address restrictions are not blocking the request. Can check this in the logs.
(This was my embarrassing reason!)
Mine was even more embarrassing.
Right Click on folder,Remove READ only attribute.
For me, there was a vestigial Web.config in C:\inetpub\wwwroot with rewrite rules. Deleting it solved the problem.
I was facing issue on windows 7 and surprisingly it was fixed after installing service pack 1
You might also get this if setting up FTP for a website and you try and change the default directory for FTP on the website.
From what I can tell:
Manage FTP Site -> Advanced Settings -> Physical Path
is the same
Manage Website -> Advanced Settings -> Physical Path
Changing one will change the other and possibly cause a 403 on a working site.
So I have all the updated code, the entire solution builds. It works on everyone else's machine, however when I try and access localhost/extranet on my machine, it gives me this error:
HTTP Error 403.14 - Forbidden
Detail Error Info:
Module DirectoryListingModule
Notification ExecuteRequestHandler
Handler 0x00000000
Requested URL http://localhost:80/extranet/
Physical Path C:\svn\K2\trunk\appteam\web\Chatham.Web.UI.Extranet\
Logon Method Anonymous
Logon User Anonymous
Now I tried going into IIS7, and enabling directory browsing, this removed the error, but still didn't bring up my website. I also tried going in and disabling the default document, re-enabling it, everything, nothing worked. I've also restarted IIS a few times to no avail.
Any ideas?
It sounds like your IIS is not processing the routing rules for your application and is trying to find a default.aspx, index.htm, etc. Since it cannot, it is wanting to display the directory listings (which is why you were getting the 404.14).
I just checked my dev setup and I think that your AppPool has to be set on Integrated as opposed to Classic on the Managed Pipeline for the AppPool. I have ran into this before, there may be ways to use the Classic Pipeline, but this would/should be the quickest way to resolve your issue. To check/change the pipeline mode, click on Application Pools from the menu on the left side of IIS, find your AppPool and look in the managed pipeline column. If it is set to Classic -> Right click the AppPool, choose basic settings, then change the dropdown from Classic to Integrated.
If I am incorrect, someone please feel free to correct me on this in the comments.
Edit - Just to add, you can run an MVC app in the Classic Pipeline mode, but you have to do the IIS 6 tricks to get it to work properly. Mainly, you need to turn on wildcard script mapping for MVC to work in Classic mode, If not it expects an .aspx file (or similar) to exist for it to handle the execution pipeline over to .NET from IIS.
Causes this error is removed Global.asax file from your root directory of your site.
To solve this problem add a Global.asax file to your project.
See here: How to add Global.asax file to ASP.NET MVC4 project
In IIS, you need to find out which app pool your application is running from. Just right click the web application under Sites>Manage Web Site>Advanced Settings. The first property should be the app pool.
Now, click Application Pools. You should see a column called "Identity". Add that user to the ACL of the C:\svn\K2\trunk\appteam\web\Chatham.Web.UI.Extranet\ directory. If it just says 'ApplicationPoolIdentity', it can be a little tricky figuring out the user. If it's just running under DefaultAppPool, you can use IIS AppPool\DefaultAppPool.
My solution was because I didn't have ASP.NET installed via "Turn Windows Features on and Off" so it was simple. I figured it out by enabling directory browser and trying to go to my views folder which then gave a more descriptive answer and pretty much said that there was a problem with a module because ASP.NET is not properly installed. It then dawned on my to go and install it.
Change the 'start page' by right click on the page and select 'Set as Start Page' that you want to open first when the web application starts first. This might solve your problem. :)
Also make sure in IIS Application Pool settings that Enabled 32-bit Applications under Advanced Settings is set to FALSE. I spent hours trying to fix this and that was my issue. Windows Server 2012 IIS 8.5
I solved this problem by setting exact .net framework. My website was using v4.0 version of .net.
Workaround to handle the problem:
Open command line as an administrator
Go to directory "C:\Windows\Microsoft.NET\Framework\v4.0.30319"
Execute the following: aspnet_regiis.exe -i
Open IIS and change Pipeline Mode of Your application to Integrated
Hope this helps
In my case the HTTP Redirection feature was missing on the server (with IIS 10).
Adding the feature resolved the issue and the site started to load fine.
I have standard ASP.NET 4 application. Inside this application there are also few razor (e.g. test.cshtml) files. ASP.NET application works however if I point browser to /test file (without extension). IIS (static file handler) returns 404.
The same application and even the standalone .cshtml files are working on local machine (with IIS7.5/Win7) and a server with (IIS7.5/Win2008R2), however it does not work the server with IIS7.0/Win2008.
MVC3 is installed on both machines, app pools on both machines are .NET 4.0 integrated.
How the .cshtml handlers works? When the IIS decides to use static file handler and when the .cshtml handler? What else should I check?
EDIT:
Clarification - I am not actually using whole MVC framework, it is just like plain-old .ASPX or PHP file. No controllers, no routes, no 'views'. I am using it for a simple script in addition to old ASP.NET application.
I think it is not a programming issue, since it works on local computer, but rather a configuration issue - the IIS on the Win2008 server might not be configured properly.
EDIT2:
(Machines with IIS7.5 works, only machine with IIS7.0 does not work. But I am not sure whether it is a problem of IIS version.)
EDIT3:
On my local computer where it works, I have not set any routing. TheCodeKing and Keith suggested that I need to have a routing somewhere. Maybe yes, but it is not in my application. It might be set by default somewhere in IIS configuration.
Do you have any hints where this 'implicit' routing could be found?
EDIT4:
Note: On all computers there is HttpForbiddenHandler for *.cshtml, since you cannot download the cshtml file. And there is also the TransferRequestHandler for *.. (Both are enabled.)
EDIT5:
I have found that on the servers, where it is working, I need to have any .cshtml file in the web root. If I remove the .cshtml from the web root and try to invoke any from a subdirectory it will not work.
EDIT6:
I tried that on another two machines: one with IIS 7.5 and another with IIS 7.0. On IIS 7.5 it works (plain install no configuration), but on IIS 7.0 it does not work.
How to make it work on IIS 7.0?
Yay! After several days of struggling I've found it! :))
One way to make it work on IIS 7.0 is to enable runAllManagedModulesForAllRequests:
<modules runAllManagedModulesForAllRequests="true" />
(Although, on IIS 7.5 it works even with the default value runAllManagedModulesForAllRequests="false".)
Don't ask me why:) Maybe someone can explain that.
Not sure if this is your particular problem, but it sounds like ASP.NET Web Pages isn't running (MVC 3 and up depend on Web Pages for Razor and other things). Sometimes things can get installed in orders that mess up some configuration of ASP.NET and IIS, which in turn could make it so Web Pages isn't running and no cshtml file will get executed.
Try running aspnet_regiis /i to clean it all up.
There is an hotfix for IIS7.0 available at: http://support.microsoft.com/kb/980368
I installed it today on windows 2008 SP2 (which requires an OS restart).
The behavior in IIS 7.0 is now similar than IIS 7.5
It fixed the problem on my side / without forcing:
<modules runAllManagedModulesForAllRequests="true" />
This is a better approach than running all modules for any request (even on css/images/...) which would cause unnecessary overload.
Are you sure that IIS has sufficient permissions to access the file under the /test directory?
This could cause some silly issues as I've found.
If this is an asp.net 4.0 web application, you will need to manually set up routes, create the appropriate controller(s), and make sure that your views (.cshtml files) actually exist in the /Views/ControllerName folder.
I would also recommend setting up your project to use IISExpress in your development environment to more closely match your web server. It's a great help when debugging these sort of issues.
As you aren't using MVC, you would need to set up routing, or rewriting using IIS rewrite module to expect /test to resolve to /test.cshtml. You won't get this behaviour without it.
e.g. something like this in your application start.
routes.MapPageRoute(
"extension-less paths",
"{view}",
"~/{view}.cshtml"
);
cshtml can work, if you set a web.conf.
You can think it is a html but with razor syntax.
We are taking our website offline for approx an hour today and I want to redirect all traffic to an offline default page I created within the folder "offline" and the file is default.aspx. I tried using IIS7 HTTPRedirect by checking "Redirect requests to this destination;" and entering in the URL "http://webtest.ipam.ucla.edu/offline" but I am receiving a "Internet Explorer cannot display webpage" error.
please help.
I'm assuming as you're on IIS7 that your app is in ASP.NET - if not, please ignore this:
There's a nifty little feature that if you place an app_offline.htm file in the root directory of your ASP.NET application, it will have the net effect of taking your application offline.
What is the detail you see in your "Internet Explorer cannot display webpage" error? Is it really that generic or do you get some detail?
Addendum
An alternative is to add something like this into the web.config of your asp.net app (which will allow dynamic pages:
<system.webServer>
<httpRedirect enabled="true" destination="http://myurl.com/offline.aspx" />
</system.webServer>
The issue with using this approach is while you're uploading new assemblies, there is a chance your application will crash when someone hits it (giving them confusing errors) while you're making changes. Consequently, the offline.aspx page may not show properly - your mileage may vary, but this is why it's generally considered a better practice to use app_offline.htm.