I have a Sonicwall firewall. I want to block the Psiphon mobile and PC applications.
I denied access on these ports: 51,5242,4244,5243,9785,1701,47,443,500,4500,1080
Most VPNs are closed but the Psiphon app still works; how I can block it?
Vpn – How to block Psiphon
firewallsonicwallvpn
Best Answer
I'm quoting what is posted on the Psiphon page:
If you block these ports, you will also be blocking a lot of services in your network.
You need to do Deep Packet Inspection if you want your really block Psiphon.
https://psiphon.ca/es/faq.html