Tor allows users to navigate the web anonymously. Users with access to Tor can bypass the Smoothwall On-Premise Appliance Filtering and access blocked content.
Follow the steps below to block Tor traffic by blocking certain ports.
Tip
Port 80 is also used by Tor, but Tor traffic using this port is automatically blocked by the Web Filter.
1: Set up HTTPS Inspection
You must create a HTTPS Inspection Policy to Decrypt and Inspect for Everyone, Everything, Everywhere, Always to block Tor traffic on port 443.
2: Set up a Firewall rule
Set up a Firewall rule to Drop traffic from Tor.
- In the Services section, select Create.
- In the pop up, select New service, enter a Name, select TCP as the Protocol and enter the Port number.
- Select Add item.
- Repeat the above steps for each of these ports:
- 9000
- 9001
- 3443
- 8443
- 8080
- 587
- In the Services section, select the checkboxes next to the ports and select Add to add the ports to your Firewall rule.
Note
You will see an option for Proxies > Tor in the Applications (Apps) section. Please note that checking this box has no effect.