Hello my friends ,
I use hotspot in my network
but there are some applications that bypass the hotspot login page and allow customers to use the internet for free.



This is an image of an application that bypasses Hotspot login page and allows internet traffic to the customer for free.
I think this app depends on dns port 53 !
The important question is:
How we can block this applications from using port 53 before logging in to the Hotspot network?

Thanks alot.

The connection will be blocked