[ATP/FLEX] How to block Web-Proxy on Nebula






The user might use the Web-Proxy tool(such as steganos) to bypass Content Filter's category inspection. This article will guide you on how to use security policies to block this behavior.
Configuration steps:
Navigate to Configure > Firewall > Security policy to set the Action set to Deny and configure the Web-Proxy URLs that you would like to block on the Destination field. This will allow you to effectively block those Web-Proxy URLs.
Furthermore, you can utilize the DNS/URL Threat Filter to prevent access to Proxy-related websites through the Anonymizers category or by adding the URL to the block list.
Test Result
Attempt access to the Web-Proxy URL will result in an inability to connect.
To verify this, navigate to Site-wide> Monitor > Firewall > Event log. You will observe dropped logs generated by the security policy.
Blocked by the DNS/URL Threat Filter.
The event log indicates that.
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