How to avoid upload of some file extensions in one eB Web Server but allow that file extensions in another eB Web Server?

Hi,

We have the following situation:  Two eB Web Servers: 1 in the DMZ | 1 in the LAN

 

From Director we can remove a Media Type, let's say .ppt.pptx

 

This prevent uploading those file types to eB from all the clients: Director, Web Server LAN and Web Server DMZ.

 

The customer wants to prevent upload of all file types except: .docx.xlsx.pdf.dwg ONLY from Web Server in the DMZ.  

How can we accomplish that?  Any idea?

 

Thanks in advance,

Sebastian.