hi
I have a FileUpload and I save a picture and this is the error
Access to the path 'D:\Hosting\0000000\html\images\APgt_logo.jpg' is denied.
an my local is working well
whats the problem?
this is the code
new_row["Product_imag"] = FileUpload1.FileName.ToString();
FileUpload1.SaveAs(Server.MapPath("/images/"+ FileUpload1.FileName.ToString()));
The user that is running the Web Service process (ie w3wp.exe) doesn't have sufficient rights on the folder you are trying to write to.
Either you have to set write rights in IIS, or you have to adjust the security in the file system. Or both.
You need to provide more information if you want help with that.
This is a permissions problem on your web server.
When you run the project locally, the local web server is executing using your permissions which has write access to the directory in question.
When running on the server, the user the app pool is executing under does not have permission to write to the directory. This is normal as it usually shouldn't.
You might ask this over at serverfault.com to get some good recommendations on how to do this in a secure manner.
Related
Recently deploying an mvc4 project to a virtual directory on a shared iis6 server, I was able to get the server to allow reading files (a problem stemming partially from extensionless URLs).
I have not however, been able write anything to the database or to txt file logs, since deployment. Speaking to the hosting service I've been able to determine that the user is Network User, that all users (including asp net) have read/write privileges. I've tried moving the log files into a separate Log folder, also to no avail.
the error I'm getting is:
"[UnauthorizedAccessException: Access to the path
'D:\wwwroot\wwwroot1\isphost\psychtech\psychtech.co.il\Testing\Log\LogHttpRequ
ests.txt' is denied.]
Any and all ideas would be appreciated!
The message is pretty clear, the user of the app pool under which run the IIS worker of your site can't access this path to write to the file. The problem might be the same to save to your .mdb.
I suggest you to contact your hoster and ask him about this, it will probably be able to help.
On a side note, you may whant to use a proper database as the file/mdb ones aren't meant for load and concurent acces as it can occur in a web environement. It will also be more scalable, more reliable, more secure and more resilient to failure.
After many hours, the hosting company IT specialist demystified the problem: as I'm deploying an .net 4 application on an iis6 server, the server utilizes a different user, namely: NETWORK SERVICE. Once this service was granted write privileges, the problem was solved.
I believe this is what reporter was hinting at.
A note of caution: this configuration is highly susceptible to SQL Injection, requiring additional safety measures in the code
I am using ASP.NET for my web application. I am able to write a text file in server path using this method Server.MapPath(). But I also want to create a text file in different location like C:\ or D:\. I am using IIS version 5.1.
This is my code to write a file in the C:\ drive.
string text="Welcome";
StreamWriter sw = new StreamWriter("C:\\sample.txt", true);
sw.WriteLine(text);
sw.Close();
When I run the application it throws a runtime exception saying
UnauthorizedAccessException. Access to Path C:\sample.txt is denied.
Please guide me how to write a text file in the C:\ drive...
Its obvious that you need permission to be able to create/write/delete etc a file on any location on disk.
The tip here is that your asp.net application is running under one pool, and the pool is running under specific user - this user must have the correct permissions.
Update
There is two kind of users that "runs" together on an asp.net page. The one have to do with permission with IIS, and this is the one that KBoek speak about. For example, a user request a page , from IIS, and the IIS using the USER A to see if can read this file and send it back to web - or have permissions to run.
The second type of user is the pool. From the moment that IIS have permissions to run the pool then run it using the pool user. So if the file is going to read by pool the pool must have permission to read and not the iis.
Why there are two kind of users here. Because the one is represent the user that see the data, and the other represent the programming that we made.
If for example we have an automation tool that make delete to a set of files, then we do not won to the remote client to direct access this file and maybe delete if he like to - but only we must have this permission to do only on programming. So our asp.net program have different permissions from the user that connect and see page, so we have two kind of users here.
The server process runs under a specific user (dependent on your IIS version), that user has to have write access to the folder where you want to save the file. Tell me your IIS version, then give me a minute and I'll look up the user name for you.
In order to write into a certain location, the web server user must have write access granted to that location. You have to set up the folder rights to this for work. The exact user depends on your IIS version.
First of all I'd use Server.Mappath("C:\\sample.txt");.
Secondly, the exception says it all, the user attempting to write a file in the server does not have the permission to write.
Check Checking and Setting up the Correct Permissions on the IIS Server for permissions
Find your user and allow it to write.
I have an MVC application in which users are able to upload files. Before I write the uploaded file, I create a directory according to date time. I start off with C:\ApplicationName and end up with C:\ApplicationName\20111001\Filename.ext when the upload is completed (in theory).
My problem on my local Windows 7 machine is that I can not write the file.
I get an "access denied" exception no matter which user I give full access to the directory. The strange thing is that the date directory gets created just fine.
I have given the following users full access:
[Current logged in user]
NETWORK SERVICE
IUSR
IIS_IUSRS
Guests
Everyone
Without any success. I really don't understand what is going on here. When I give Everyone full access, I should be able to create a file right?
PS: I use Visual Studio 2010 and ASP.NET Development Server straight out of the box.
I am not running IIS, I am running the watered down version "ASP.NET
Development Server". So I am quite limited
The problem is that in order for you to write to the file directory from the application you will need to run Visual Studio as Administrator.
Windows 7 is preventing the process from going outside of its sandbox because it is running with limited privileges. This is true even if your account is the administrator.
Check the permissions of the parent folder and make sure they are inheritable, you can check this on the advance options window.
This might help a bit... probably application pool permission is the culprit here:
IIS AppPoolIdentity and file system write access permissions
Just had the same problem myself. By default IIS7 AppPools use AppPoolIdentity. Just open up your AppPools in IIS Management Console, select the one you are having problems with, choose Advanced Settings and under Process Model change Indentity to Built-in Acoount > NetworkService.
Since you have already granted NETWORK SERVICE acces to your folder everything should work.
I've got a script that checks if a file exists. The path is a network share that exists on the server..
I.e. the directory is D:\Mainfolder\Subfolder\file.txt
the network share is \Server\Subfolder\file.txt
The file exists, however from my asp.net site, it says that it doesn't.. I assume that this is a permissions issue since it works if the file is in a different folder.
I've added a bunch of accounts to the permissions of both the share and the folder, but nothing is working..
Is there a way to display which user the File.Exists is being executed as?
Thanks
The user that is accessing the files is the user configured on the application pool of the ASP.NET site or virtual directory. By default, this user will not have access to many local folders/files, let a lone a network share. You have two options:
Change the user configured for the application pool to a user that has access to not only the local files necessary to run the site, but also has access to the network share.
Configure impersonation in the Web.config. See this other SO question here which has a snippet of configuration from Web.config for impersonation.
Some links:
IIS6 Application Pool Identities
IIS7 Application Pool Identities
Starting with Vista a Windows Service is not allowed to access "Desktop things" - one of these being a mounted drive letter aka network share...
You could mess around with the permissions etc. but even if you get it to work this is not supported...
What is the exact goal ? Perhaps there is some other way...
It's probably going to be the user that your application pool is running under. You can see the list of application pools in IIS manager.
However, you can also use Process Monitor to see what users are trying to access the files on your server (including attempts that fail due to insufficient permissions). You can find it at http://technet.microsoft.com/en-us/sysinternals/bb896645. You'll probably need to run this on the remote server where the file actually exists.
Another thing to consider is that while the D:\ drive might be mapped as a network drive when you log in interactively with your account, it probably doesn't exist when the website user is 'logged in'. You'd be better off telling the website to use the UNC path (\server\subfolder...) rather than the D:\ path.
As others have mentioned, your application is probably running under the Application Pool identity. Unless you've changed it explicitly, this account will not show up in your list of accounts to configure.
Getting that sorted out isn't going to help you, though, if you are attempting to access a resource though a mapped drive, as the mapped drive exists only within the scope of the logged-in user.
Think of it this way: you and a colleague share a machine, and you map drive D:\ to \serverA\Shared\Matt, your colleague isn't going to log in and have drive D:\ mapped to your share. She can freely map drive D:\ to \serverX\Secret\Resources.
Start by making sure that you are using a UNC path, then work through the web of permissions issues.
if i save my webpage as html it is giving me the error:
Access for the path C:\ is denied -ftp.
in http locally it is working. it is storing in the desktop. but after publishing in ftp server it is showing this error
how to resolve this errror
on Windows 7? you can turn off UAC.
Below, I assume that the web application is not allowed to save data to the hard drive.
Make sure that the process running the worker process for IIS has write permission for that folder. However, it is unusual to save files in C:\, and usually a web application should use a database server to store new data. If you deploy your web site to a hosting server, you might not be allowed to save data on the hdd of the server.