Everyone, every company, small or large has some kind of file server for storage of documents and other files. The file server are in many cases the heart of the operations. Some have several file servers and some have even more. Almost every file server looks the same; some kind of shared folder with subfolders (in absurdum). Most of these file servers uses file/directory permissions to have control over who are allowed to view or edit the files. Most often this is configured through groups, but far to often permissions are set on user accounts directly.