Hi,

I have an ASP.NET portal running on one server with a page with the FileUpload Control. I want to upload files to a second server, but I'm not achieving this beacuse of the second server authentication.

How can I authenticate (on code) to the second server before trying to upload the file?

I don't know if this is possible, but what I want is some way to code before the upload the authentication to the second server, giving something like the adress, user and password.

The authentication is S.O. level. The same authentication I use if I want to acess the same folder from my machine.

Thank you! 

Dear cseven,

Check this article. Look at the 'Points to consider' section at the end of this article

http://dotnetcurry.com/ShowArticle.aspx?ID=68

HTH,

Suprotim Agarwal

Thanks for the help.

I've been reading about Impersonation, but I can't make it work

Let me explain better my problem:

I have a ASP.NET portal running on Server A (with Windows Server 2003), where in a page I use a FileUpload Control. The selected file will be uploaded to a specific folder on Server B (with Windows Server 2003).

But, I need to authenticate to Server B or else I get an error about unknown user name or bad password.

The Impersonation is the better solution for my problem?

I can't put it working. When I add a line like this

<identity impersonate="true" userName="contoso\Jane" password="pass"/>

on my Web.config file I get an error about

Could not create Windows user token from the credentials specified in the config file. Error from the operating system 'Logon failure: unknown user name or bad password.

Is he trying to authenticate to Server A? If yes, how can I authenticate to Server B?

Thank you!

Dear cseven,

There could be quiet a few reasons for this. I would suggest you to read this kb article.

HTH,

Suprotim Agarwal

Great link :)

 The solution is on the WNetAddConnection2 function. Works like a charm.

Thank you for the help!

please help me i use follow code i have error An Error Occurred: System.EntryPointNotFoundException: Unable to find an entry point named 'WNetAddCnnection2A' in DLL 'mpr.dll'.

i use this like i have An Error Occurred: System.EntryPointNotFoundException: Unable to find an entry point named 'WNetAddCnnection2A' in DLL 'mpr.dll'.