I am hoping this will be a simple question. I am using IIS 7.5 / Visual Web Dev 2010 Express.
I know why this error appears :) it's a security/user issue. The problem is, I don't know what account/permissions this intranet is using that's causing the issue.
I use a simple authentication method that detects the user ID. If they're on that list, they are allowed to look at the page. This is done through:
[allow users] and [deny users]
(Brackets substituted for arrows.)
Authentication mode is set to Windows.
There is another intranet site that users can access- I have read and write permissions on that database that this web site uses. That intranet site works for me, but this gives me a security error.
I'm thinking that by using this authentication method, that it switches to a system profile which tries to access it and gets denied. Is there a generic system profile you guys know of that would cause such an error? Is that even a right assumption or is it a security setting that's related to my username?
Thanks in advance...
Well, maybe this could be helpful for someone in the future who is also facing the same problem. I am not sure where to find this, but apparently I had left out or there was not a tag called identity impersonate. By just having the authentication mode set to Windows, I thought it would take care of everything.
I am assuming that if you use Windows authentication, a system account will try and access the SQL database. Because that system account (whatever it may be, there is one defined somewhere but I forgot the name of it) does not have access, that permission error gets thrown.
What will make the web page use the user permission is with this tag:
[identity impersonate="true"/]
Substitute brackets with arrows.
From Flex we call a Upload.aspx page which is configured for anonymous authentication. Most of the time, it works like a charm, but once in a while, the browser does prompt a enter credentials popup...
The whole site is configured for Windows Authentication, but some pages and folders are set to use anonymous authentication. This is done using the location tag in web.config.
What could be the reason for this?
UPDATE:
Only happening in Internet Explorer... they should deport it.
If you use FireFox with FireBug, open up the Net panel, it will show you the request making the permissions request. If you cancel it, it will show an access denied in red, and that will easily help you hunt the issue down.
Maybe it's because a file (image, css, etc.) is being referenced that doesn't exist?
A couple of things I would check out:
Are there any images/other files that are added to your page using the FQDN? If so, are any of these pointing to an external site or staging site that might require credentials?
Is it possible that someone has removed permissions from the application pool credentials on the web server for some specific file or files the site is requesting?
Is the site load balanced or part of a farm? It could be that one or many servers are configured incorrectly, and the rest are ok. Then if by chance you hit the bad servers, you could get the prompt.
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.
We're trying to run a set of administrative tasks on the server via a web administration console. The console runs with impersonation as the currently logged-in user, and only administrators on the local machine are allowed to log in. Right now it works for most cases but we're having trouble when running under UAC.
The first issue is a blocker: it seems like admins do not get the "BUILTIN\Administrators" role even if they are an admin on the local box. This can prevent them from even getting into the admin console, since we're using the web.config <allow roles="BUILTIN\Administrators"> notation to specify security. I suspect that the only solutions here are to either run the ASP.NET app as SYSTEM, or to allow more users and do a more granular permissions check in code. Any other ideas? Is there any way to inject an elevation request into the built-in ASP.NET permissions check?
The other problem is that we want to run some commands that require administrator access. The user visiting the site is an administrator, and is correctly impersonated, but when we spawn a process it fails due to lack of administrator privileges. The clear answer is to elevate for the duration of that command. There are solutions that will let me temporarily elevate by impersonating a specific username and password, but I'd prefer not to have to ask the already-validated user for his password. Are there any tricks for elevating the current user?
(I can understand why the ASP.NET team might try to make this hard, so that web pages can't take invisible advantage of an administrator visiting the web site... but surely there must be some way to pro grammatically declare that your code needs full Administrator rights, appropriately warning the IIS admin of its intentions?)
There are a series of answers for Windows Forms apps, such as:
How to elevate privileges only when required?
and File.Exists returning false from a network share
but I'm hoping to find one that will work with ASP.NET...
Thanks
Steve
We were able to achieve a "higher" impersonation level from the user currently accessing the website by enabling the server for delegation in Active Directory. Per Microsoft, You can think of delegation as a more powerful form of impersonation, as it enables impersonation across a network. You may not need to go across the network, but it may resolve your security issues.
Here are a few resources on setting up delegation, hopefully this will help you.
Impersonation and Delegation
Impersonation and Delegation in ASP.NET
http://support.microsoft.com/kb/810572
http://msdn.microsoft.com/en-us/library/aa291350(v=vs.71).aspx (older article)
http://msdn.microsoft.com/en-us/library/ms998351#paght000023_delegation
I've been having trouble getting my ASP.NET application to automatically log users into the Intranet site I'm building. No matter the googling or the experimentation I applied, there is always a login box displayed by IE7.
I've got Windows authentication mode set in the Web.config, disabled anonymous access and configured the correct default domain in IIS, but it's still asking the user to log in and, more annoyingly, the user is required to provide the domain too (DOMAIN\auser), which is causing problems with non-technical visitors. Thank Zeus for password remembering functionality.
I'm not the network administrator so it's possible that something about Active Directory is set up incorrectly, or it could just be me missing something very simple. Please note that I don't want to impersonate the user, I just need to know that the IPrincipal.Name property matches that of a valid record in my user database, hence authenticating the user to my application.
To this end, it would be very useful to have a checklist of all configuration requirements for AD, ASP.NET and IIS to work together in this manner as a reference for debugging and hopefully reducing some user friction.
It sounds like you've covered all the server-side bases--maybe it's a client issue? I assume your users have integrated authentication enabled in IE7? (Tools -> Internet Options -> Advanced -> Security). This is enabled by default.
Also, is your site correctly recognized by IE7 as being in the Local Intranet zone? The IE7 default is to allow automatic logon only in that zone, so users would be prompted if IE thinks your site is on the internet. I believe using a hostname with a dot in it causes IE to place the site into the Internet zone.
Open Active Directory Users and Computers MMC snap in
Expand computers section from TreeView (left side)
Check if the computer is registered in your domain.
Also, you have to login with a domain account on that computer, otherwise that authentication box will be shown.
In IIS, enable annonymous access and allow the web.config to handle user authentication.