I've a requirement of writing into a network folder from ASP.NET.
So I just used Streamwriter class and it works fine when trying from local system using Visual studio web server. But when trying to host it into IIS on the same machine writing into network folder not working at all.
It saying
Access to {\MYSERVER\specialfolder} is denied
So I thought it as some access issue. What I tried was as follows
Changed Default Applicaiton Pool (Which is the pool using for my
domain) identity to local system (And tried the other 4 ones too) :
Still the error
Authentication change for my site. Change from
Anonymous for specific user IUSR into Application pool Identity : No
help
Right clicked on my site and then selected edit permission, then
specified write permission for IIS_IUSRS group : Not worked
Also I tried, Right Click on the network folder itself -> security ->
But there is not IIS_IUSRS group
What else I'm missing for having the write permission into network
folder.
Details about my system
IIS 8.5
WINDOWS SERVER 2012R2
VISUAL STUDIO 2015
As far as I know, the IIS use the LOCAL user which generated by the IIS, this is local computer account.
If you want to access another network folder, you should set the enough permission to the IIS application pool identity.
You should use AD to assain enough permission to a spcial AD account.
Alternatively, using ActiveDirectory you could create a Domain User account, configure the application pool identity to use that domain user, and grant that user access to the network files.
More details, you could refer to below article:
http://www.iis.net/learn/manage/configuring-security/application-pool-identities
Related
I get the following .NET error when trying to load my Orchard CMS website:
Access to the path '\\.........\www\App_Data\Dependencies\Lucene.dll' is denied.
Exception Details: System.UnauthorizedAccessException: Access to the path '\\WDP\DFS\30\7\4\5\3024678547\user\sites\5481517.site\www\App_Data\Dependencies\Lucene.dll' is denied.
ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and the configured application pool identity on IIS 7.5) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.
To grant ASP.NET access to a file, right-click the file in File Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.
How do I actually go about granting access rights? I've googled and found I should go into the server and right-click on the directory and edit the properties. BUT, I am in a shared hosting plan and don't think I can do that.
Am I pretty much at a dead end?
Things I've tried:
Setting file permissions through FTP, but I get a:
500 'SITE CHMOD 777...command not understood
I've downloaded and installed IIS Manager and successfully connected to my site, but still did not find any options to set permissions in there.
I've also called Network Solutions, but all I was told was to try to do the file permissions settings (as I mentioned above).
Thanks in advance.
I have a website and it sits on the IIS Server and I have a folder on another server the file server. I have set the Virtual directory to the folder on the fileserver. This application both servers are on the same domain, but in the future I will have serves that are not on the same domain.
I have tried to set up local users on both machines and set up the app pool to use the local accounts and I get
System.UnauthorizedAccessException: Access to the path is denied.
and
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.
I have set the virtual to connect as the local user and get the same error.
I have setup a domain user and then set the app pool to use the domain user and set to use pass through and when I test the settings in Directory Browsing it says everything is good but I get the same error from the webpage.
I have setup a domain user and then set the app pool to use the domain user and set to the connect as to the user and when I test the settings in Directory Browsing it says everything is good but I get the same error from the webpage.
I have set the apppool to use my login and it works with pass through permissions.
Is there something I am missing.
You need to set the folder permissions in your separate folder to give access to the "computer$" account of the server where your application is hosted.
See here: https://www.iis.net/learn/manage/configuring-security/application-pool-identities
application pool identities also use the machine account to access
network resources.
So in the server where you have your data files you should set the folder permissions to allow access to the machine name where your website is hosted.
I had this same challenge when deploying a web app using IIS on a Windows 2012 Server.
The issue was the App Pool Account did not have Full rights to the Website Root.
All I had to do was to go to the directory where the Website Root resides and then right-clicked on it. Next, I selected Security and then gave the IIS-Users group full access to the directory.
For me IIS-Users group contains all Users/App Pool Accounts that are created in IIS.
That's all.
I hope this helps
I have created a domain user specifically for the the virtual directory and it appears to work, but is this best practice?
I am using IIS7 to host an asp.net 2.0 site. However, whenever I browse it I get the error
The requested page cannot be accessed because the related configuration data for the page is invalid.
Now I realize that this is because the IIS_IUSRS does not have access to the web.config. My question is how can I grant access to IIS_IUSRS
When I look under Application Pools and check the Identity. It shows
ApplicationPoolIdentity(default), LocalService, LocalUser and Network Service
However, I cannot seem to find IIS_IUSRS
Where do I find it
IIS_IUSRS is actually a Windows group so you won't find it under the application pools in IIS.
If you need to grant this group access, then this will need to be done via the file system, e.g. you could go to the folder where you have deployed your ASP.NET application and grant permissions to the group:
I am running IIS 7 on Windows Server 2008 R2 with PHP 5.4. One of my PHP scripts is trying to access a file on a protected network share using a UNC path. How can I change the IIS service account to an account that has permission to access the share? This is really easy to do on Apache HTTP server (you just change it), but it's not clear how to do with IIS. What can I do?
Update:
I was able to get things working using the "Connect As" option in the "Basic Settings" of my website and then specifying an account that has access to the network share. It appears that my problem is related to this question:
https://serverfault.com/questions/366234/iis-identities-application-pool-vs-connect-as-in-basic-settings
For IIS 7 running on Windows Server 2008 R2 ... In the IIS Manager, select the Application Pool under which your Web Site is running.
Click "Advanced Settings". There will be an entry for Identity (it is under the Process Model section). Click it, provide credentials for your account that has permission to access the share.
UPDATE
You should make sure that if you are using an Active Directory Domain Account, you provided that correctly under Identity for the running App Pool. For example, MYDOMAIN\myAccount.
After making this change, you will need to do the following:
Stop the Web Site.
Recycle your Application Pool.
Start the Web Site.
UPDATE II
From the comment discussion on this answer, #HydroPowerDeveloper was able to get the PHP script to be able to access the network share via UNC path using WebSite -> Basic Settings -> "Connect As" and setting the credentials there.
In the past, I have always used the approach of setting Identity via Application Pool and that has allowed my code to access Network shares via UNC path.
However, all of the sites/applications I have deployed on IIS are .NET based WCF or ASPX sites.
I would speculate (but am not 100% certain on this, would need research/testing to confirm) that the Identity specified in the Application Pool is used by executing .NET code, whereas the "Connect As" is used by the PHP script.
Generally the Application Pool is set using the least amount of privileges as possible.
http://msdn.microsoft.com/en-us/library/ff647402.aspx
The easiest route is to allow access to the current IIS account.
In Explorer, navigate to the shared directory.
Right Click -> Properties -> Security
If you don't see the expected IIS user in the list (Group or user names), edit and add the user as required.
I used "NETWORK SERVICE" -> Check names.
The detailed instructions are on that site.
In this way, the system is still restricted, we're ONLY allowing access to specific directories, we don't need to create any new users, we don't need to recycle the application pool and we don't need to perform any nifty impersonation code.
To resurrect an old question...
I've just been setting up a Win 2016 server that uses some Perl to access a UNC share. I set the Application Pool to an account that I verified had the correct permissions on that share. I then set up my site to 'Connect as...' (under 'Basic Settings') the same user. I still couldn't get access working.
Much head scratching later, I realised that my 'Virtual Directory', cgi-bin, was running under the original 'pass through' account. I then set up the virtual directory to 'Connect as...' the same account as the site and the application pool and, bingo, it all works fine.
So, remember to update any Virtual Directories as well as the site and App Pool...
I am getting this errror in my newly created website in Windows 7 and IIS 7.5. I created an SSL certificate and done binding new website.
HTTP Error 401.3 - Unauthorized
You do not have permission to view this directory or page because of the access control list (ACL) configuration or encryption settings for this resource on the Web server.
Earlier when I created the website, I selected 'application user(pass through authentication)' in 'Add Website' dialogue. and when I click "Test Settings ..." button, I get this error message:
The server is configured to use pass-through authentication with a built-in account to access the specified physical path. However, IIS Manager cannot verify whether the built-in account has access. Make sure that the application pool identity has Read access to the physical path. If this server is joined to a domain, and the application pool identity is NetworkService or LocalSystem, verify that \$ has Read access to the physical path. Then test these settings again.
Please suggest solution to this.
Thanks.
I had the same issue, ensured my DefaultAppPool was running under ApplicationPoolIdentity and the DefaultAppPool had permissions to the folder, but some files still didn't load.
Turns out my problem was that the anonymous authentication user was set to someone else instead of ApplicationPoolIdentity
Screenshot
Make sure that application pool of your website and website both are running under the same identity. Then make sure that this identity has required permissions on the virtual directory. I had exact same issue and above two checks fixed it.
IIS 7 also creates "IUSR" as default user to access files via IIS. So make sure user IUSR has read access to files/folders.
How to check if IUSR has read Access? Right Click -> Folder -> Properties -> Security Tab See if IUSR is in Group or user names list, If No.
Click Edit -> Add -> Advanced -> Find Now -> Select IUSR and click OK -->click Apply
The below worked for me. I did not set up an SSL, just a new website within IIS. Upon doing so I was immediately unable to access the website with this error message.
When I created the new website, a new Application Pool was also created. The Identity of this Application Pool was set to ApplicationPoolIdentity. As mentioned by Suhas, the Application Pool of the website and the website itself must be running under the same identity. (I do not know how to check the identity of the website, but the Application Pool's Identity can be checked by going to Application Pools and looking at the Identity column). The default Application Pool name is DefaultAppPool.
I added permissions to the site (right click the site name -> Edit Permissions -> Security -> Edit -> Add), linking the site to the DefaultAppPool object, which in turn gives the site access to the default user and it's settings. (The default user is created when IIS is installed. Read more about this in Microsoft's docs).
I thought this would be all that's needed to obtain access, but this is incorrect. The website's Application Pool must also be set to DefaultAppPool. This can be done by right clicking on the site -> Manage Website -> Advanced Settings -> Change the Application Pool value to DefaultAppPool.