I am new to a job in IT at an office without an active directory domain system. I have been told to implement a system of file tracking and file access control. We need to be able to both restrict access to the files on our network and know who is using them. An ideal solution would be to require a user to enter a password when they open a directory, with that password being tied to the user. Then, the software would also track what that person does with the files in the directory (cut, copy, paste, delete, modify).
Please point me towards a software suite that is easy to implement and use. I am not looking to implement Active Directory.