Accessing the external web application through web clipping portlet

Question

We have configured the web provider with the following details:
1) Accessed the web provider with the
URL
http://hostname/portalTools/webClipping/providers/webClipping
2) Accessed Edit link beside the HTTP Proxy under Provider Configuration.
logged in as Portal Administrator.
We haven't changed any values in Repository Settings.
Under Proxy Settings
Configured the HTTP proxy field with proxy server name e.x: proxy2.company.com.This is configured to browser
wherver my application server is installed.
portnumber value configured as 8080
Checked the Requires Authentication.
Selected Type as "Type"
Realm value configured e.g: AD AUTHENTICATION Do not prefix mycomp\ with the
username
selected "Use login below for all users"
configured the user name /password which I used to access my internet sites. (googl.com)
All the above steps for provider configuration.
login to portal for configuring webclipping portlet to a page.
Followed the below procedure to add web clipping portlet to a page.
1) From the portlet Repository, selected web clipping portlet and entered the URL location value as http:// www.google.com
2) In the next step , It has thrown the below exception.
An exception has occurred : oracle.portal.wcs.transport.http.HttpTransportException WCS-519 -- HTTP Proxy
Authentication failed for proxy proxy2.mycomp.com:8080 with authentication of
type "Basic" at realm "AD AUTHENTICATION Do not prefix mycomp\ with the
username". Update your proxy login information in the Edit Defaults /
Personalize page to authenticate.
Please click "Cancel" or "Back" in the above panel (if present) to retry. Otherwise, please try to click "Back" (from
the browser) to go back to the Oracle Portal page to restart.
We have checked manually the provider.xml file for webclipping provider and the
configured details are available in provider.xml file.
Please let us know, what could be the problem and try to provde a solution at the earliest.
This is very critical issue for us.if anybody have any suggestions on this , please do let us know.
Regards,
-Venu

Answer 1

Either the login information is not correct (it explains it should not be domain\username but just username) or the authentication format from your Microsoft proxy server (Kerberos?) is not compatible with the Web Clipping portlet. You might get a better reply in the Portal forum about supported proxy authentication methods for the WebClipping portlet.