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Daagvandermeer
Visitor III
March 24, 2025
Solved

FG - Block ALL internet except DNS https://vbr.butler.veeam.com/

  • March 24, 2025
  • 12 replies
  • 2394 views

Is there a way to Block all Internet traffic except Veeam Malware detection URL?

The DNS is changing every time (IP's) so based on IPaddress Its not working always.

And I also created a DNS filter 

 
 

image.png

But I see still traffic to others based on IP (I think)

 

Is there another way to fix this?

 

Kind regards

Daag

Best answer by AEK

Are you using deep inspection? If so then it seems the internal server is not trusting the signing CA on FG.

 

12 replies

Jean-Philippe_P
Staff & Editor
Staff & Editor
March 27, 2025

Hello Daagvandermeer, 

 

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible. 

 

Thanks, 

Jean-Philippe - Fortinet Community Team
Jean-Philippe_P
Staff & Editor
Staff & Editor
March 28, 2025

Hello,

 

We are still looking for an answer to your question.

 

We will come back to you ASAP.

 

Thanks,

Jean-Philippe - Fortinet Community Team
AEK
SuperUser
SuperUser
March 28, 2025

DNS filter may not work in such case because clients can access some locations without any DNS query.

Try use Web filter instead.

AEK
Daagvandermeer
Visitor III
March 28, 2025

Thanks,

Now I tried.

image.png

 

But when I'm opening the website on the specific Server, Ill get Certificate errors.
(cant validate the certificate...)image.png

AEK
SuperUser
SuperUser
March 28, 2025

butler.veeam.com doesn't exist. Can you try open vbr.butler.veeam.com?

AEK
AEK
SuperUser
AEKAnswer
SuperUser
March 28, 2025

Are you using deep inspection? If so then it seems the internal server is not trusting the signing CA on FG.

 
AEK
Daagvandermeer
Visitor III
March 28, 2025

Thanks, I changed the SSL inspection to No Inspection. And that fixed it.
image.png

AEK
SuperUser
SuperUser
March 28, 2025

You need to set it to "Certificate Inspection", not "no-inspection".

AEK
Daagvandermeer
Visitor III
March 28, 2025

Then its not working.

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