Problems with error: "Access to the path <path> is denied." - asp.net

I was looking for the the trick to resolve that error (google, stackoverflow.com etc) and every nothing works.
I need to dynamically create an .aspx file via the asp.net application.
What I've done to try fix it:
1) In the folder's Properties -> Security, I've added IUSR_TONY and also IIS_IUSRS and allow them the Full control to the folder. Just to check if that will help. Nope, it won't.
2) in the IIS Manager, I tried to change the Application's Pool Defaults Identity (based on that) I checked all options, with no success
I don't know what to do more to fix it. Any ideas ?

Directions for IIS 6
You need to change the 'Home Directory' permissions with IIS Manager.
Open Properties on the website. Select the 'Home Directory' tab. Check the 'Write' checkbox to enable write permissions.
If you are set on doing this, I would suggest only enabling write on a particular directory and not the entire website. Changing the permissions for a single directory is the same as above except instead of selecting Properties for the entire website, choose Properties for the directory where you will be creating files.
Directions for IIS 7
Open Internet Information Systems (IIS) Manager
Expand the site you want to modify (hit the plus next to the name)
Right-click the directory where you would like to be able to write files and select Edit Permissions
Click on the Security tab
Click on Edit... under the group and users list
Select IIS_IUSRS from the "Groups or user names" list and add make sure the Allow checkbox is marked for Write.
I know this sounds a lot like what you did in 1) of your question but I'm guessing you may just edited the permissions through Windows Explorer rather than IIS Manager. Let me know what error(s) you see if the steps above still don't work for you.
I tested writing a file to disk using an example from aspalliance.com and it worked great when I granted IIS_IUSRS write permission to the output directory and stopped working when I removed the write permission.

Please state your operating system and version of IIS.
You need to grant access to the account that is running the app-pool in IIS. It is usually NT Authority\Network Service, so try granting full control to that account.
However, if you are using windows integrated security (and have impersonation=true) on your website, the user that must be granted access, is the user requesting the page.
Finally, I really want to discourage you from making a blog system that creates aspx files on the fly. It's simply not the way to do it.

Related

"401 Unauthorized" on a directory

I assume this is an IIS error, as this doesn't happen if I run the project on my local machine.
I have my stylesheets at ~/Content/css
Any files in that directory won't load on the page, and when I navigate to them directly, I get a server error:
401 - Unauthorized: Access is denied due to invalid credentials.
You do not have permission to view this directory or page using the credentials that you supplied.
This only happens with that directory, I have no problem accessing any other files. Is there something I need to do in IIS7 to stop this?
Open IIS and select site that is causing 401
Select Authentication property in IIS Header
Select Anonymous Authentication
Right click on it, select Edit and choose Application pool identity
Restart site and it should work
It is likely that you do not have the IUSR_computername permission on that folder. I've just had a quick scan and it looks like you will find the information you need here.
If that isn't the case, are you prompted for your username and password by the browser? If so it may be that IIS is configured to use Integrated authentication only, as described here.
Open IIS
select site where you are facing the problem
Select Below
- Right click on Anonymous Authentication and click on edit and follow below
You do not have permision to view this directory or page using the credentials that you supplied.
This happened despite the fact the user is already authenticated via Active Directory.
There can be many causes to Access Denied error, but if you think you’ve already configured everything correctly from your web application, there might be a little detail that’s forgotten. Make sure you give the proper permission to Authenticated Users to access your web application directory.
Here are the steps I took to solve this issue.
Right-click on the directory where the web application is stored and select Properties and click on Security tab.
Click on Click on Edit…, then Add… button. Type in Authenticated Users in the Enter the object names to select., then Add button. Type in Authenticated Users in the Enter the object names to select.
Click OK and you should see Authenticated Users as one of the user names. Give proper permissions on the Permissions for Authenticated Users box on the lower end if they’re not checked already.
Click OK twice to close the dialog box. It should take effect immediately, but if you want to be sure, you can restart IIS for your web application.
Refresh your browser and it should display the web page now.
Hope this helps!
You need to check the folder permissions on your server and check that the account that you are using to run your application has access to that folder.
For me the Anonymous User access was fine at the server level, but varied at just one of my "virtual" folders.
Took me quite a bit of foundering about and then some help from a colleague to learn that IIS has "authentication" settings at the virtual folder level too - hopefully this helps someone else with my predicament.
In our case it was Windows-integrated authentication specified in the app's web.config
BUT the windows-auth module was not installed on the IIS machine at all.
Just adding another possible reason.
Another simple fix I found was to delete the local IIS site (from within IIS Manager) and then re-create the virtual directory from the "Properties" of your web project in Visual Studio.

Hosting ASP.NET in IIS7 gives Access is denied?

I have setup a application in my IIS7 that uses .NET Framework 4.0 (runned by NetworkService) but when browsing the site I get this:
Access is denied.
Description: An error occurred while accessing the resources required to serve this request. You might not have permission to view the requested resources.
Error message 401.3: You do not have permission to view this directory or page using the credentials you supplied (access denied due to Access Control Lists). Ask the Web server's administrator to give you access to*
I have tried to give NetworkService full permission on the folder that holds the website (the one that the web application in IIS is pointing against) but I do still get the access denied?
Why?
I gave access to "IIS_IUser" but instead it should be "IUSR". That solved the problem.
For me, nothing worked except the following, which solved the problem: open IIS, select the site, open Authentication (in the IIS section), right click Anonymous Authentication and select Edit, select Application Pool Identity.
I had the same problem, I enabled "Anonymous Authentication" but it still did not work.
So I also ENABLED "Forms Authentication" Then it worked without any problems.
OS : Windows 7 & IIS 7
If you still have permission denied after adding IUSR & NETWORK SERVICE.
Add also IIS_WPG. The addition of this last user solved my problem.
For people who can't find those users:
when you're trying to add a user in security of the folder (properties of the folder), click on "Advanced" of the window "Select Users or Groups". Change the location to the computer name then click on "Find Now". You'll find those users in the list below.
If you're using Anonymous Authentication, IIS 7 will use the "IUSR" account for directory access (unless you've set it to use the app pool identity. If you haven't granted IUSR sufficient permissions on your site's folders and files, you'll get this error
For me in windows 7 it started to work only after I gave 'Read & execute', 'List folder contents', 'Read' permissions to site folder for both users
IUSR
NETWORK SERVICE
Tried most of the solutions here, but no luck. What worked for me was adding "Everyone" to the security permissions. Properties -> Security -> Edit -> Add -> Everyone. The given defaults were enough for me to regain access.
In the near future, I should probably figure out what credentials are being sent to the server so that I can give proper permissions. But I hope it helps someone!
In the Authentication settings for APP itself (IN IIS), see if you have anonymous enabled.
We need to create a new user ComputerName\IUSR by going to the website folder-->Properties--->Security--->Edit-->Add and give read access. This would work definitely.
This solution is for IIS7
I went round and round on this and it turned out to be improperly set default page. Hope this helps someone else avoid an hour of wasted time.
In my case running c:\windows\Microsoft.Net\Framework64\v4.0.30319\aspnet_regiis.exe /i resolved the 403 access denied issue.
Checking the Application Pool Identity in Anonymous Authentication and enabling Forms Authentication would solve problem for access denied error. 😁
After some thinking and a lot of of trial and error I found out that this error occurred because part of my web.config was encrypted and for some reason the key was no longer valid.
Re-encrypting the config section solved the issue.
After watching this tutorial :
https://www.youtube.com/watch?v=RbrZbHpXBTE&list=PLp1Emx1rT4z9YWLDXBjUwBb130qv2Zq2x&index=4&ab_channel=LearningProgrammingTutorial
I had the same problem using RDP ( windows server 2016 Datacenter )
i followed the tutorial above & enbaled my directory browsing options from the IIS internet infromation services manager.
what you want to do is to access your IIS manager , you can check out the tutorial above to learn how to access IIS manager if you have trouble acessing there , it was useful for me that's why I'm sharing then ... go to :
you should gave access to IUSER
( or application tool identity , depends or what you want to work with )
and your problem would be solved! :)
Also you need to check your firewall and TCP settings , if ping between two machines didn't work for you , you can check this out :
https://operavps.com/rdp-connection-issues/
It was due to WWWRoot directory security issue.
Simple solution is, Just copy applicatio folder to some other drive, Instead of "C:\Inetpub\wwwroot"
and then create a virtual directory for this new path. That's it.
If the IUSR user is already specified in Authentication and you're still getting this issue, it could be that your Directory Listing isn't enabled. Be sure to check that. That was the case for me.
This is what happened to me:
Get - Post is ok. Working well.
When I try to use Options verb, the server return error like that.
Then, beware with urlScan
I add OPTIONS verb to urlscan configuration .ini file, then everything works well.
To check if urlscan is installed or not, open your iis manager, and open ISAPI FILTERS url scan should appear at the list.
I was also facing the same issue,
Everything was normal all the rights were given to the user and for folder as well.
After many research i found that the wwwroot (Source code folder) was shared with some other user.
I stopped sharing and it worked like a charm.
I was facing this issue after pulling from remote master and adding to the appsettings on web.config.
I solved it by enabling Windows Authentication:
Click on the project and press f4
Make sure Windows Auth is enabled:

asp.net log files permissions

Our asp.net app writes errors to a text log file in the web sites root folder. This has lead to all sorts of permission problems, different flavors of IIS and windows allow different things by default.
So what I am wondering is there a location somewhere in Windows where all types of users can write a file without any extra permissions that will also work for all IIS and flavors of windows?
I am thinking of the ApplicationData folder, but did this exist in Server 2003 ?
Thanks,
AJ
The easiest solution would be to use the App_Data subfolder of your web application for this. By default it's not viewable from the web, so Internet clients won't be able to read the logs.
Depending on your deployment method, you might have to change the permission to allow write access to this folder (to the user under which your web application is running).
Alternatively, there is a place where every user can write to: It's that user's temporary folder, which you can access through Path.GetTempPath. This, however, does not sound like a suitable location for log files.
You should always first think about wwwroot folder (%systemdrive%\inetpub\wwwroot) because it has the required permission.
The permission you need is to set a full control for IIS_IUSRS
Edit: you can simply give Everyone Full Control (not recommended at all) but this solves most of ntfs permissions issues with IIS

No access to files in iis7 mvc app - server 2008 r2

I've just installed windows server 2008 r2 along with visual studio and dropbox. I'm using it as a VM for development and dropbox helps me keep my files in sync with other machines.
I've got my site set up in IIS but I'm getting an access denied error when trying to view the site. I've had this before and to get around it in the past I've gone through and added the IIS_User account to the list of permissions to read/modify the files. I assume because the file's have been copied down with drop box the files don't have the necessary permissions. Here's the bugger, I can't batch update the files by modifying permissions on a folder, I'm having to do it right to the file level and even worse, one at a time! I can't have this.
I'm relatively new to 2008 r2 and IIS 7 so I have no idea what's happening here. Can someone explain what is going on and if there's an IIS/file permission setting I can update to resolve it at the top level folder?
I've tried adding anonymous permssions on the website in IIS and I've added permissions on the folder for IIS_User (even Everyone). I have an Administrator account and that's already set to allow me to read/write/modify the files.
This is typically the message I'm getting 'An error occurred loading a configuration file: Access to the path X is denied'.
This is happening on ascx & aspx files as well as config files.
Edits:
The site is visible when debugging from Visual Studio.
The site is operating in Full Trust (internal)
Please help, this is stopping me from working and driving me insane!
By default in IIS 7, websites run as the local system's network account (NetworkService), not as IIS_User.
To verify, in IIS Manager, select the Site in question, click Basic Settings... and check the Application Pool it is assigned to. Then go into Application Pools and check the Identity for that Application Pool. Make sure that user listed is in the ACL.
Adding Everyone to the ACL should work instead, but just in case I would suggest you check the above. Also of course make sure when you set the ACL to check the box for resetting inheritance on all subfolders, if that is appropriate for your application.
You could also try setting the identity of the application pool to a local (or domain) user you have created which has access to your application directory.
Hope that helps.
Regarding whether other identities would work for your app pool, that depends entirely on whether those identities have permissions to all the files and/or databases and other resources you application needs to access. Right now you have the application running under your user account, which is generally not recommended. IIS has your password cached, and if you change it, your application will stop working until you update the application pool configuration.
As far as setting NTFS permissions, it can get tricky. Once you have disabled permissions inheritance, that file or folder will need to be updated individually every time you need a permission change. The flip side of this is that you cannot remove inherited entries on an ACL, you can only add to them. However you can design a strategy that offers a baseline level of permission at the root of a file structure, and then add permissions to subfolders/files.
In order to check & reset inheritance on a folder, go into its properties, security tab, click advanced, then click Edit. You can see whether this folder inherits permissions from its parent, and optionally wipe out all subfolder/file permissions and enable inheritance on all child folders & files.
Hope this helps.

IIS7 Permission Denied - ASP File Write

Unfortunately I don't have a whole lot of information on this.
I have a customer who has moved their site from an ancient system to IIS7 on Windows 2008 Server. Info about the error is below:
Error:
E:\wwwroot\sp\xxx\online_data.xls
Microsoft VBScript runtime error '800a0046'
Permission denied
/xxx/oat/exceldata.asp, line 52
Code:
49 response.write(server.mappath("online_data.xls"))
50
51 set fso = createobject("scripting.filesystemobject")
52 Set act = fso.CreateTextFile(server.mappath("online_data.xls"), true)
The only suggestion so far is to:
grant the application pool
(DefaultAppPool / Classic AppPool)’s
impersonated identity read and write
permission to the physical folder
which the asp page reside
Will look at this when I get access, but other suggestions would be appreciated.
The provided answer is correct, but I needed a little more detail on how to accomplish it. To make it really easy, follow the steps below. I was setting up an asp page counter on a sandbox system in our intranet.
Open Computer Management.
Drill down to the IIS server
Management
In the Connections pane, click on
Application Pools
In the Application Pools pane,
right-click on DefaultAppPool and
choose Advanced Settings. Look in
the Process Model section.
By default, the Identity property is
set to ApplicationPoolIdentity.
This is a built-in account.
If it's set to the default, then you
can use the built-in user
machinename\IUSR for your
permissions settings. I had to
specify the machine name because
this is a virtualized server, YMMV.
If it's not set to the default, use
that username for your permissions
settings.
Cancel out of the dialog and return
to Windows Explorer, to the folder
where you need to add permission.
Right-click to get Permission
settings.
Set up machinename\IUSR or the
non-default username you determined
in steps 6/7 above. Grant
permissions as needed.
This helped:
http://learn.iis.net/page.aspx/140/understanding-built-in-user-and-group-accounts-in-iis-7/
The suggestion is correct. If the path to the solution is not immediately obvious for whatever configuration reasons, try running procmon (filter on "online_data.xls") and see who's failing, why, and what user account they run under. Then check the ACLs.
I had a similar problem in Windows 7 and my solution was changing the Authentication. From IIS, select the site, go to Authentication, disable Anonymous Authentication and enable Windows Authentication.
Spent a bit of time with something similar. Even with the correct settings it wasn't working.
I then tried create the actual file first on the server. Turned out to be the trick that worked. Now my ASP page writes to the existing file no problem.
Must be something about creating a new doc from scratch that is another issue.

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