Access-Based Enumeration is a rather cool add-on to Windows Server 2003 that allows an administrator to restrict what users can see on a file share. If Access-Based Enumeration is enabled for a share, a user can see only the files and folders to which they have access. This can help reduce support calls from users, eg "Why do I get this Access Denied error on the Finance folder?" and make it simpler for users to access the data they need.
It works just fine on a single server, but when it comes to implementing ABE on a cluster, it's not so easy. Here's how to get started, and get basic ABE working across the cluster....