Technical Tip: How to Block Access to Websites Containing Russian-Language Content

To block access to websites containing Russian-language content on FortiGate, follow these configuration steps:

1. Configure a web filter profile in proxy-based mode and enable the Content Filter option, as shown below:

2. Create a Content Filter for Cyrillic Characters Using the regular expression [ЁёА-я], which will match any Russian characters.

CLI configuration :

config webfilter content
    edit 1
        set name "Auto-webfilter-content_4a6h8fact"
            config entries
                edit "[ЁёА-я]"
                    set pattern-type regexp
                    set status enable
                    set lang cyrillic
                next
            end
end

3. Create a firewall policy in proxy-based mode and apply the web filter profile to the policy.

4. Once the configuration is in place, attempting to access any webpage containing Russian text will result in the site being blocked.

Note: To ensure optimal performance, it is recommended to use proxy-based mode for the content filter functionality.