Руководство Пользователя для Cisco Cisco Web Security Appliance S170
Chapter 16 URL Filters
URL Filters Overview
16-4
Cisco IronPort AsyncOS 7.0 for Web User Guide
OL-23079-01
Uncategorized URLs
An uncategorized URL is a URL that does not match any pre-defined URL
category or included custom URL category.
category or included custom URL category.
Note
When determining policy group membership, a custom URL category is
considered included only when it is selected for policy group membership.
considered included only when it is selected for policy group membership.
All transactions resulting in unmatched categories are reported on the Monitor >
URL Categories page as “Uncategorized URLs.” A large number of uncategorized
URLs are generated from requests to web sites within the internal network.
Because this type of internal transaction can falsely inflate reporting data and
misrepresent the efficacy of the URL filtering engine, Cisco recommends using
custom URL categories to group internal URLs and allow all requests to internal
web sites. This decreases the number of web transactions reported as
“Uncategorized URLs” and instead reports internal transactions as part of “URL
Filtering Bypassed” statistics.
URL Categories page as “Uncategorized URLs.” A large number of uncategorized
URLs are generated from requests to web sites within the internal network.
Because this type of internal transaction can falsely inflate reporting data and
misrepresent the efficacy of the URL filtering engine, Cisco recommends using
custom URL categories to group internal URLs and allow all requests to internal
web sites. This decreases the number of web transactions reported as
“Uncategorized URLs” and instead reports internal transactions as part of “URL
Filtering Bypassed” statistics.
For more information, see
For more information about creating custom URL categories, see
.
Matching URLs to URL Categories
When the URL filtering engine matches a URL category to the URL in a client
request, it first evaluates the URL against the custom URL categories included in
the policy group. If the URL in the request does not match an included custom
category, the URL filtering engine compares it to the predefined URL categories.
If the URL does not match any included custom or predefined URL categories,
the request is uncategorized.
request, it first evaluates the URL against the custom URL categories included in
the policy group. If the URL in the request does not match an included custom
category, the URL filtering engine compares it to the predefined URL categories.
If the URL does not match any included custom or predefined URL categories,
the request is uncategorized.
Note
When determining policy group membership, a custom URL category is
considered included only when it is selected for policy group membership.
considered included only when it is selected for policy group membership.
For more information about uncategorized URLs, see
.