If you manage one or several file servers in your infrastructure, you may have the will to prevent users to paste files with specific extensions. This behavior can be motivated because you don’t have enough storage for big files or for security reasons. Moreover, if you use DFSR to replicate shared folder to another site, you don’t want to block the bandwidth with a movie replication.
Microsoft Windows Server included a role which provide us the ability to manage files on shared folder: File Server Resource Manager (FSRM).
In order to block, deny some file extensions, we need to install and configure this role. Let’s see how to do that with Server 2012 R2.