Web rating override

Web rating overrides allow you to add specific URLs to both FortiGuard and custom web ratings categories. The action for each category can be configured in a web filter profile. See FortiGuard filter for more information.

If a URL is in multiple enabled categories, the order of precedence is local categories, then remote categories, and then FortiGuard categories.

The custom category Allow action will have different effects depending on the inspection mode in the policy that the web profile is used in: In flow-based inspection mode: The category is disabled and has no impact on the web filter. The action of the next category in the order of preference is applied. In proxy-based inspection mode: The category is allowed.

In SSL/SSH inspection profiles, custom categories must be explicitly selected to be exempt from SSL inspection. In proxy addresses, custom categories must be explicitly selected as URL categories for them to apply. In both settings, if a URL is in multiple selected categories, the order of precedence is local categories, then remote categories, and then FortiGuard categories.

Web rating override requires a FortiGuard license.

Web filter profiles

In this example, www.fortinet.com is added to both a custom, or local, category (Seriously) and an external threat feed, or remote, category (OnAworkComputer). The local category action is set to Monitor, while the remote category action is set to Block. When a user browses to www.fortinet.com, the local category action takes precedence over both the remote category and the FortiGuard category (Information Technology), so the Monitor action is taken.

To create a custom category in the GUI:

1. Go to Security Profiles > Web Rating Overrides.
2. Click Custom Categories, then click Create New.
3. Enter a name for the category, and adjust the Status as needed.

   

4. Click OK.

To create a web rating override in the GUI:

1. Go to Security Profiles > Web Rating Overrides and click Create New.
2. Enter the URL to override.
3. Optionally, click Lookup rating to see what its current rating is, if it has one.
4. Select the new Category and Sub-Category for the override.

   

5. Click OK.

To create a new FortiGuard category threat feed in the GUI:

1. Go to Security Fabric > External Connectors and click Create New.

2. In the Threat Feeds section, click FortiGuard Category.
3. Enter a name for the threat feed, such as OnAworkComputer.
4. Enter the URI of external resource.

   

5. Configure the remaining settings as needed, then click OK.

To use the new categories in a web filter profile in the GUI:

1. Go to Security Profiles > Web Filter and create or edit a web filter profile. See FortiGuard filter for more information.
2. Enable FortiGuard category based filter

3. Set the action for the Seriously category in the Local Categories group to Monitor.

4. Set the action for the OnAworkComputer category in the Remote Categories group to Block.

   

5. Configure the remaining settings are required, then click OK.

To use local and remote categories in a web filter profile in the CLI:

1. Create the custom category and add a URL to it:

   config vdom
       edit root
           config webfilter ftgd-local-cat
               edit "Seriously"
                   set id 140
               next
           end
           config webfilter ftgd-local-rating
               edit "www.fortinet.com"
                   set rating 140
               next
           end
       next
   end

2. Create a FortiGuard Category Threat Feed external connector to import an external blocklist.

   config global
       config system external-resource
           edit "OnAworkComputer"
               set category 192
               set resource "https://192.168.0.5/lists/blocklist.txt"
           next
       end
   end

3. Enable the new category in a web filter profile. See FortiGuard filter for details.

   Custom local categories have an ID range of 140 to 191. Remote categories have an ID range of 192 to 221.

   config vdom
       edit root
           config webfilter profile
               edit "WebFilter-1"
                   config ftgd-wf
                       unset options
                       config filters
                           edit 12
                               set category 12
                               set action warning
                           next
                           ...
                           edit 23
                               set action warning
                           next
                           edit 140
                               set category 140
                           next
                           edit 192
                               set category 192
                               set action block
                           next
                       end
                   end
               next
           end
       next
   end

   When a filter is added for the local and remote categories (140 and 192 in this example), the default action is monitor.

SSL/SSH inspection profiles

To use local and remote categories in an SSL/SSH inspection profile to exempt them from SSL inspection in the GUI:

1. Go to Security Profiles > SSL/SSH Inspection.
2. Create a new profile or edit an existing one.
3. Ensure that Inspection method is Full SSL Inspection.
4. In the Exempt from SSL Inspection section, add the local and remote categories to the Web categories list .

   

5. Configure the remaining settings as required, then click OK.

To use local and remote categories in an SSL/SSH inspection profile to exempt them from SSL inspection in the CLI:

config vdom
    edit root
        config firewall ssl-ssh-profile
            edit "SSL_Inspection"
                config https
                    set ports 443
                    set status deep-inspection
                end
                ...
                config ssl-exempt
                    edit 1
                        set fortiguard-category 140
                    next
                    edit 2
                        set fortiguard-category 192
                    next
                end
            next
        end
    next
end

Proxy addresses

To use local and remote categories in a proxy address in the GUI:

1. Go to Policy & Objects > Addresses and click Create New > Address, or edit an existing proxy address.
2. Set Category to Proxy Address.
3. Set Type to URL Category.
4. In the URL Category, add the local and remote categories.

   

5. Configure the remaining settings as required, then click OK.

To use local and remote categories in a proxy address in the CLI:

config vdom
    edit root
        config firewall proxy-address
            edit "proxy_override"
                set type category
                set host "all"
                set category 140 192
                set color 23
            next
        end
    next
end