RSS viewer webpart in SharePoint 2010

Today I solved the issue concerning the availability of the RSS viewer webpart in our production mySite.

2 steps are needed in our case :

1-      Web.config of mySite :

a.       updated the defaultProxy section inf "D:\inetpub\wwwroot\wss\VirtualDirectories\mysite-uat.acc-bgc.net80\web.config" with :

<system.net>

     <defaultProxy>

          <proxy proxyaddress="http://yourproxyname:80" bypassonlocal="true" />

          </defaultProxy>

  </system.net>

b.      IISRESET & do a page refresh

2-      On ISA Server, add the SharePoint Server (CA Server) to the rule that allow it to access http.

Also, "Allow All Users" for the authenticated mode must be used in the ISA rule.

This will avoid the error message hereunder :

Now, all is working as requested :

That's all folks