Problem using ASP.Net Impersonation to access UNC share

I am working on an application where a web service (on the web tier)
calls another web/gateway service (on the app tier). This then needs
to save a file to a UNC share on a file server in our internal
network.

The issue that I'm having is that as our app tier is not on a domain,
I am unable to impersonate a domain account to access the share. I am
able to map a network drive to the share from the app tier by
connecting as a domain account but I have been unable to do the same
using ASP.Net. I have tried impersonating a domain account via the
web.config and also via the code.

I have managed to get a POC working by creating a local account on the
app tier and then creating the same account on the file server. If I
set my app to impersonate this local user I am able to save the file
successfully but when I try to impersonate a domain account the
authentication fails.

Has anybody else experienced a similar issue? Is there a way I can
impersonate a domain account on the app tier even though it is not on
the domain?
.

Relevant Pages

  • Re: Problem using ASP.Net Impersonation to access UNC share
    ... The issue that I'm having is that as our app tier is not on a domain, ... I am unable to impersonate a domain account to access the share. ... app tier and then creating the same account on the file server. ...
    (microsoft.public.dotnet.general)
  • Re: Problem using ASP.Net Impersonation to access UNC share
    ... You can't directly impersonate a domain account on a workgroup server (your app tier server) because the app tier server is unable to logon the domain account. ...
    (microsoft.public.inetserver.iis.security)
  • Problem using ASP.Net Impersonation to access UNC share
    ... The issue that I'm having is that as our app tier is not on a domain, ... I am unable to impersonate a domain account to access the share. ... app tier and then creating the same account on the file server. ...
    (microsoft.public.dotnet.general)