When setting up a virtual directory under IIS using a UNC path to a remote share, what user identity should I be expecting to see the read request to the share come under?
I've setup the above scenario and configured the user under 'Connect As' as a known user who has permissions on the remote share, which I checked with Windows Explorer.
However, when trying to access a file from within a web browser on the share using http://localhost/myfiles/atestfile.txt, I am getting an HTTP Error 401.5 - Unauthorized: Authorization failed by an ISAPI/CGI application error returned. 'myfiles' is mapped to the remote share and atestfile.txt resides in the shared folder.
If I use sysinternals filemon application to see what process and user the read request to the share is being carried out under, then I get the details that the request is through the w3wp.exe process and the user is shown as "NT AUTHORITY\NETWORK".
I was expecting the user to be shown as the user I confugured under the 'Connect As' option.
Any guidance appreciated.
If i recall correctly (used iis about 4 years ago) it was IUSR_. I'm not sure that it's still so, but give it a try.
Edit: try to give a look at this post, maybe you will find some clues ;)
Did you try it also with other file extensions than "txt", maybe "test.html"? What DLL is used for txt in the ISAPI extensions configuration (web -> Home Directory -> Configuration...)?
The section "To configure security and authentication for a virtual directory" in the MSDN article "How to: Create and Configure Virtual Directories in IIS 5.0 and 6.0" should contain the information you'll need for finding the right configuration.
I guess the account used in the security settings should be able to access the network share. This could be accomplished inserting the account in the right group or changing that account.
Related
This question:
IIS application pool access to remote directory on network ask how to allow iis to have the ability to access a file on a network drive. The answer is to set up a user with the appropriate rights and set the application pool identity to that user. We've done that and when we restart the app pool we get a 503 error on our web app.
It appears that the app isn't actually starting.
Here are more details which may help you analyze the problem:
This is Windows Server 2008 R2, iis 7
Our username is abc123\_svc_OSAT (Domain name isn't actually abd123 but I need to obscure it rather than risk publishing internal company information)
As abc123\_svc_OSAT I can map a drive to \\FPIAPPS01\Logs which is a directory on a network server so we know that this user has network access.
In iis we click on our app pool, select Advanced Settings, select Identity, Select the .. button, select "Custom Account" and set it to the user abc123\_svc_OSAT and use the proper password. We then stop and start that application pool.
When looking at the app in a browser we get a 503 error. Checking the logs at C:\inetpub\logs\LogFiles\W3SVC1 we don't see any error. However, the application appears not to have actually started.
Does abc123_svc_OSAT need a specific permission which we may be
missing?
Is there any other place with a log file which we should
look to get a better idea of what is causing the problem?
Thank you.
Does abc123_svc_OSAT have access to directory that hosts your ASPX files? The log files you are looking at are only for logging access to your website. You will want to check the event viewer to see the actual IIS error.
We ended up making the user an administrator and that worked. That's probably too broad for sufficient security rights. We'll keep looking. But it does show that the issue was somehow related to user roles rather than a password issue.
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 find something related, but not same thing.
The error "Login failed for user 'NT AUTHORITY\IUSR'" in ASP.NET and SQL Server 2008
My issue is that the files are shared on the network, and I would like to debug from local IIS, I find that all static files seems to be access denied (401.3)
I have used the trace system, and find that the IIS is accessing the source using "NT AUTHORITY\IUSR"
Url http://localhost:8451/umbraco_client/panel/images/panel_boxhead_h2_bg.gif
App Pool Debug451
Authentication anonymous
User from token NT AUTHORITY\IUSR
Activity ID
I have set the shared folder to be accessible to everyone, and changed the application pool's identity to domain administrator.
I have also tried to use 'Network Service' as identity and assign Domain\MachineName$ full access to the shared folder...
It looks to me that iis always using "NT AUTHORITY\IUSR" to access static resouce? If so, how can I give access on a shared folder to a local account? Or how can I force IIS to use some other identity?
update:
as there are some new answer to this old question which I gave up at that time. I accentually have encounter this similar issue again recently on a server running windows 2008 R2, which I resolved, and I would like to give some update.
I resolve the issue this time by add read permission to $ComputerName/Users. This seems only an issue with server environment, and not sure if related to any group policy or similar kind. Hope this might help someone in future.
Once you have configured the user of the application pool to have access permission to the shared folder ( create a new user in windows and add it to the IUSER group, and add specifique access rights to the shared folder for that user), YOU HAVE TO change in IIS the Authentification settings: IIS->site that need access->Authentification settings -> anonymous authentification->edit->select aplication pool identity (instead of IUSER).
Make sure you have enabled IIS to serve static content. I had this issue, too, and it drove me nuts until I figured that out.
In "Turn Windows Features on or off", go to "Internet Information Services > World Wide Web Services > Common HTTP Features > Static Content" (for Windows 7; you'll have to find the similar option in XP).
I don't know how much this will help, but also see Microsoft's documentation.
this worked for me, thanks.
Go to the Shared Folder –> right click –> properties -> security –>edit –> add (so far as usual ) -> choose object types –> check on computers –> now enter the computer name where your application is working from , where you published your application
You can try $[computername]\IUSR > you'll want to use advanced search to look this one up in windows permissions.
Or... you can set up your shared folder as drive on IIS's local and access it that way. So [serverb]\share becomes mapped to a letter on server A and IIS accesses it that way.
Set the identity of the application pool by going to advanced settings:
Remember to edit the Anonymous Authentication and either use the application pool identity or else specify a user account that has access to the resource you are wanting to access
I am trying to FTP to a new FTP site I setup with IIS 7.0 for the Windows Server Web (64-bit) edition. But I get the above error when I try to login to this site. But I can login to my other FTP sites.
Also, when I select this website from IIS Manager, the FTP section does not display in the middle section although it does display in Action panel. And I cannot successfully login to this FTP site either.
I have checked and I have Log on locally selected. I do not have allow only anonymous connections. I have Access this computer from the network selected.
I restarted my IIS and FTP services also.
The one different thing I noticed about this website in IIS different from the other site that has FTP working is that this one there are 3 virtual directories beneath the site. And that when I click on any one of these 3, then the FTP strip does appear in the center pane. Make sense?
How can I debug cause of this error? Any SW tools I can use?
Have you tried logging in from the FTP server? If you do this, and have "Show detailed messages from local requests" enabled under FTP Messages, then you'll get a clearer idea as to why the login if failing. In my case I got the following message (I am using IIS Manager Users, and Passthrough authentication)
530-User cannot log in.
Win32 error: Access is denied.
Error details: Filename: \\?\C:\Windows\system32\inetsrv\config\redirection.config
Error: Cannot read configuration file due to insufficient permissions
To solve this I gave the NETWORK SERVICES user read only access to the config directory specified in the error message. I'm not 100% sure this is the right thing to do, but it certainly fixed this issue for me.
in my situation, I was missing Role Service FTP extensibility, which is actually allows IIS Manager Auth.
This is pretty tricky, as you could allow IIS Manager auth, but still it would not work until you have not installed FTP Extensibility
In my case I forgot to enable the Basic authentication
There seem to be many different possible causes. In my case, I was unable to login with the plain "username" with the same error as mentioned.
It was solved when I logged in with ".\username" instead.
For some reason the FTP client was trying to login with a domain account, while I just wanted to login with a local computer account.
Hope this helps someone.
Try submitting your credentials in this format:
UserName: Domain|Username
Password: secretSquirrel
I had the same problem, I removed the FTP site and followed this:
http://www.iis.net/learn/publish/using-the-ftp-service/configure-ftp-with-iis-manager-authentication-in-iis-7
Prerequisites - I set the permissions on the folders using the 4 command samples but this did not alone fix the issue, so I cannot in good faith say this step is needed, but it is what I did and it now works.
CONFIGURE THE IIS MANAGEMENT SERVICE AND ADD AN IIS 7 MANAGER -
Just do step 4, removing the existing user first and then re-adding them.
Creating a New FTP Site and Configuring an IIS 7 Manager Account -
All the steps here
CONFIGURE THE FTP SITE TO USE IIS 7 MANAGER AUTHENTICATION
All 12 steps here, including the "administrator" setting in step 5.
Then it started working for me, I am guessing when I did this without a guide I skipped something simple.
In My case I have made that user a member of IIS_IUSERS.
Using IIS Users.
Do not isolate users -> User name directory was working fine. Users started in the right folder.
When I was switching to Isolate Users -> User name Directory I had the following error:
Response: 530 User cannot log in, home directory inaccessible.
Win32 error: The system cannot find the path specified.
For some reason, you need to add the LocalUser virtual directory that points to your root.
It has to be that exact name and it's case sensitive.
That worked for me.
Per this knowledgebase article, you would need the log on locally privilege enabled.
http://support.microsoft.com/kb/200475
I had the exact same error. In my case, I was using a local user defined on the server running FTP. The username was very short (3 characters). I could "run as" this user on the server, confirming that Windows was Ok with it, and allowed it to authenticate. But when testing FTP, it would return User cannot log in.
Solution? I renamed the user to be longer (4 characters). Of course, updated its name under Authorization as well. Then FTP worked. Hope it helps someone!
For me, I've configured the IIS as per usual procedure properly. The anonymous authentication was working but specific user are not.
because, the user accounts were created in IIS. Actually it was also supposed to be created Windows local accounts.
Then it worked.
Please Check the security of folder which is use that ftp .
see if the user or group you select for that ftp is associate with security of that folder .
In my case I had to remove domain from user.
So, your user should be like username, not like domain\username.
Hope it helps to somebody.
For some reason my user was "locked". So I could "unlock" it at local user manager (computer management). Now it works fine. I hope it helps.
I would recommend checking FTP logs first. The status code will give you more information about the issue. Here is the explanation of the status codes: The FTP status codes in IIS 7.0 and later versions
I had this issue because my IIS didn't support passive mode. After entering data in FTP Firewall Support module, the issue was solved.
More scenarios from this post 530 User cannot log in, home directory inaccessible
Authorization rules. Make sure to have an Authorization rule that allows the user or anonymous access. Check “IIS > FTP site > FTP Authorization Rules” page to allow or deny access for certain or all users.
NTFS permissions. The FTP users (local or domain users) should have permissions on the physical folder. Right click the folder and go to Properties. In the Security tab, make sure the user has required permissions. You can ignore Shared tab. It is not used for FTP access.
Locked account. If you local or domain account is locked or expired, you may end up seeing “User cannot log in” error. Check local user properties or Active Directory user settings to make sure the user account is active.
Other permission issues. The user account may not have “Log on locally” or “Allow only anonymous connections security” rights.
I spent long time looking for a solution, I've tried every shared answer on the internet and nothing could solve the issue. It is an issue I was ignoring for years and I never could fix.
Ok, I've Plesk installed and I'm not sure if it has some effect on IIS FTP to do the following behavior ...
Using Process Monitor tool, and making ftp login request and watching the tool and doing your investigation using this tool, you can get a hint about the REAL reason of the problem.
For me, I found out that IIS FTP was trying to access the ftp folder from a path DIFFERENT than the actual ftp path I've set, I do not know why, but maybe Plesk has some effect on this.
The actual ftp path is
C:\inetpub\vhosts\zidapp
The path that IIS FTP was trying to access DURING the login process is
C:\inetpub\vhosts\Servers\7\localuser\zid_app_ftp_user
I fixed the issue by creating a folder link from 'actual' folder path to the path IIS was trying to access - using the tool mklink tool
CMD command
mklink /d C:\inetpub\vhosts\Servers\7\localuser\zid_app_ftp_user "C:\inetpub\vhosts\zidapp"
I've fixed the issue that way, so wen FTP is trying to access the folder from the wrong path, it is now goes to the correct one.
Please note doing folder shortcut wont work for this, you need a link like linux, not a shortcut ...
I hope it will help you :)
You can check the reference account you are using to log in.
Mine happened to be locked out causing the 530 error.
I am trying to use a textreader to retrieve data from a text file on a local machine. I have an upload routine to get the file for the reader to open.
When I run the application locally, it works fine. When I publish my application to my server, I am getting a Could not find a part of the path error. I assume this error has to do with permission in that the server cannot read from the local file system, but I don't know the proper way to remedy this.
do I set up the application to impersonate the user? I know I can't possibly set up each local users machine to allow the iusr account to access it.
Thanks for any thoughts.
UPDATE ****
I ensured that network service is they user for the app pool. I also ensured that the networkService has access to the local folder that the application resides in. I am running IIS7, and when I test the site, I am getting the error -
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 <domain>\<computer_name>$ has Read access to the physical path. Then test these settings again
I have tried suggestions from various posts, including adding domain\servername$ to the folder to allow access, but nothing seems to work.
Any thoughts?
Assuming this is IIS 6.5 or higher, the application pool user must have the necessary permission. By default, this is Network Service, which likely does not.
I solved this issue by first saving the file to the server, and then accessing the server's local file -
savedFileName = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, Path.GetFileName(file.FileName));
file.SaveAs(savedFileName);
The following blog helped me out - http://www.hanselman.com/blog/default.aspx?date=2008-06-28