Skip to main content
leonil0304
New Member
April 2, 2026
Question

FortiGate 7.2.13 File Filter

  • April 2, 2026
  • 2 replies
  • 491 views

Hello!

I have recently begun to use FortiGate 7.2.13 for a school project and I might need some help.

I want to create a policy on the GUI that blocks zip-files but so far I have not managed to get it to block any zip-files I download. 

I would really appreciate some help in any way for this problem, and if I need to upload more information regarding this please let me know.

2 replies

funkylicious
SuperUser
SuperUser
April 3, 2026

hi,

if you are downloading/uploading zip files on secure websites/HTTPS you would need to do deep packet inspection/DPI in order to make it work

https://community.fortinet.com/t5/FortiGate/Technical-Tip-File-Filter-not-detecting-blocking-files-sent-via/ta-p/363407 

"jack of all trades, master of none"
leonil0304
New Member
April 3, 2026

I have set it on deep inspection but i am still able to download zip-files.

funkylicious
SuperUser
SuperUser
April 3, 2026

in the File Filter profile is the traffic direction set to Both or Incoming/Outgoing ?

"jack of all trades, master of none"
MorseCode
Visitor
April 3, 2026

Blocking specific file types like .zip in FortiOS 7.2.13 is a common task, but it often fails because the FortiGate cannot "see" inside the encrypted traffic (HTTPS) where the download is happening.

To fix this for your school project, you need to ensure three specific things are configured correctly in the GUI.

1. Use "Deep Inspection" (The Most Common Miss)

If you are downloading a .zip file from an HTTPS website (which is almost all of them), the FortiGate only sees encrypted data. It cannot identify the file type without decrypting it.

  • Go to Policy & Objects > Firewall Policy.

  • Edit the policy that allows your internet traffic.

     

     

  • Under Security Profiles, look at SSL Inspection.

     
leonil0304
New Member
April 3, 2026

I already have Deep Inspection enabled and I still does not block unfortunately.