A Trusted URL import list can be any ASCII text file containing the comment # Trusted
               URL Import File and these sections:
            [allow]
            [block]
            There is no limit to the number of URLs you can include in a block list. Since URL
               Filter automatically strips the "http://" or "https://" portion of the URL, there
               is not need to included it. Delimit separate Web addresses, URLs, and/or strings using
               a line break. Block-lists support the following * and ? 
wildcards.
Sample file:
            # Trusted URL Import File
            [allow]
            http://intranet.yourcompany.com/*
            [block]
            www.source-of-sudden-new-outbreak.com
            www.known-DoS-site.com/*
            www.jobsearch.com
            IWSVA stores Trusted URL data in the following file:
            /etc/iscan/TrustedURLs.ini
            which is automatically created the first time a rule is added in the Trusted URL page.