Active directory - Sharepoint - is an e-mail distribution list and cannot be added to the Website directly. Troubleshoot issues with Microsoft SharePoint Foundation.

Group type should always be in security and not in Distributed.

If it is in distributed then the group will not be displayed in a site collection or may throw Active directory - Sharepoint - is an e-mail distribution list and cannot be added to the Website directly. Troubleshoot issues with Microsoft SharePoint Foundation.

SharePoint 2010 Active Directory Synchronization Error: MOSS MA not found

When configuring a new SharePoint 2010 server using Active Directory authentication, I was setting up the AD Synchronization and received the error “MOSS MA not found”.  This was a simple fix: The Forefront Identity Manager Service was not started.  Started up this service and then was able to configure a new AD synchronization connection.

To create the connection, just go to SharePoint 2010 Central Admin > Application Management > Service Applications > Manage Service Applications > Manage User Profile Store (note that your link will reference the actual name of your Profile Store Service Application).
Under Synchronization, select Configure Synchronization Connections.  If you need a new connection, select Create New Connection or you can edit an existing connection.
I am impressed with the number of connection types that SharePoint supports out of the box: Active Directory, Active Directory Logon Data, Active Directory Resource, Business Data Connectivity, IBM Tivoli Directory Server (ITDS), Novell eDirectory, and Sun Java System Directory Server. 

And, of course, the three primary Authentication Provider types: Windows Authentication, Forms Authentication, and the new Trusted Claims Provider Authentication.

For an AD authentication, I am a huge fan of being able to utilize specific containers for synchronization.  In my demo environment, I’ve created a couple of AD Organizational Units that I’m using for synchronization testing.

In this entire configuration scenario, I find a one item specifically interesting (and humorous) – the error message: MOSS MA not found.  I know that there was a tremendous code base that needed updated, but an error message string still has ‘MOSS’?  The SharePoint 2010 product no longer has the acronym MOSS.  It’s just interesting that there wasn’t a task to do a code search for this Acronym for the new build.  Maybe someone at Microsoft could shed some insight on this.  Just makes me wonder what else will be uncovered.

To Get Domain Controller

Get All users in Active directory through Visual Webpart - Sharepoint 2010

using (SPSite site = new SPSite(SPContext.Current.Site.Url))
      {
        SPWebApplication webApp = site.WebApplication;
        foreach (SPSite sitecol in webApp.Sites)
        {
          SPWebCollection webs = sitecol.AllWebs;
          foreach (SPWeb web in webs)
          {
            SPUserCollection users = web.SiteUsers;
            foreach (SPUser user in users)
            {
              //code
            }
          }
        }
      }