Casio ISA550WBUN3K9 manual Click Security Services Web Reputation Filtering

Security Services	7
Configuring Web Reputation Filtering

You can create a “white list” of trusted sites by adding up to 256 Allowed Web

Sites. The specified websites will not be examined by Web Reputation Filtering.

STEP 1 Click Security Services > Web Reputation Filtering.

STEP 2 Click On to enable Web Reputation Filtering, or click Off to disable it.

STEP 3 Specify the block sensitivity as Low, Medium, or High, or as a numerical threshold (Custom). The threshold values for Low, Medium, or High are predefined and cannot be edited.

•Low: Blocks fewer web threats. The threshold value is -6.

•Medium: Blocks more web threats. The threshold value is 5.

•High: Blocks most web threats. The threshold value is -4.

•Custom: Manually set the web reputation threshold. After selecting this option, choose a threshold value from -10 to -0.5.

Note: The rate of false positives increases as the threshold approaches 0.

STEP 4 In the Allowed Web Sites area, you can specify the website exceptions against your Web Reputation Filtering settings. The specified websites will not be examined by Web Reputation Filtering. You can include up to 16 websites on this list.

•To add a website exception, enter the following information:

-Matching Domain: Allows you to permit the HTTP access of a website that fully matches a specific domain name. If you choose this option, enter the domain name, not including http://, in the Site URL field and then click Add.

-Containing Keyword: Allows you to permit the HTTP access of a website that contains a specific keyword. If you choose this option, enter the URL keyword, not including http://, in the Site URL field and then click Add.

•To remove a website exception, select it from the list of Allowed Sites and click Remove.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 326