URL filtering is based on the classification of Websites into pre-defined category-types. Some of the category-types are further divided into multiple categories. Currently available are 12 built-in category types, and 64 categories. These built-in category-types and categories cannot be modified.
Use the available options to identify the URL category-types and categories to include in the blacklist.
In addition to identifying URLs by the categories and category-types they are classified into, the system also provides five (5) levels of Web filtering (basic, high, low, medium, and medium-high). Each level identifies a specific set of URL categories to blacklist. For more information on category-types, categories, and URL filtering levels, see url-filter.
blacklist [category-type|level|url-list]
blacklist category-type [adult-content|all|business|communication|entertainment|
file-sharing-backup|gaming|news-sports-general|p2p|questionable|security-risk|
social-photo-sharing|software-updates] precedence <1-500> {description <LINE>}
blacklist level [basic|high|low|medium|medium-high] precedence <1-500>
{description <LINE>}
blacklist url-list <URL-LIST-NAME> precedence <1-500> {description <LINE>}
blacklist category-type [adult-content|all|business|communication|entertainment|
file-sharing-backup|gaming|news-sports-general|p2p|questionable|security-risk|social-photo-sharing|
software-updates] precedence <1-500> {description <LINE>}
| blacklist category-type <SELECT-CATEGORY-TYPE> | Selects the category-type to blacklist. A category is a
pre-defined URL list available in the WiNG software. Categories are based on an
external database, and cannot be modified or removed. Custom categories can created
with the URL List and added to the database. Websites have been classified into the following 12 category types: adult-content, business, communication, entertainment, file-sharing-backup, gaming, news-sports-general, p2p, questionable, security-risk, social-photo-sharing, and software-updates Select ‘all‘ to blacklist all category-types. Some of
the category-types are further classified into categories. For example, the
‘adult-content‘ category-type is differentiated into the following categories:
The system blocks all categories (URLs falling within their limits) within the selected category-type. |
| precedence <1-500> | Configures the precedence value for this blacklist rule. Rules are applied in the increasing order of their precedence. Therefore, rules with lower precedence are applied first. |
| description <LINE> | Optional. Configures a description (not exceeding 80 characters) for this blacklist rule. Enter a description that allows you to identify the purpose of the rule. |
blacklist level [basic|high|low|medium|medium-high] precedence <1-500> {description <LINE>}
| blacklist level [basic|high|low| medium|medium-high] | Configures the Web filtering level as basic, high, low, medium, or medium-high. Each of these filter-levels are pre-configured to use a set of category types and this mapping cannot be modified. |
| precedence <1-500> | Configures the precedence value for this blacklist rule. Rules are applied in the increasing order of their precedence. Therefore, rules with lower precedence are applied first. |
| description <LINE> | Optional. Configures a description (not exceeding 80 characters) for this blacklist rule. Enter a description that allows you to identify the purpose of the rule. |
blacklist url-list <URL-LIST-NAME> precedence <1-500> {description <LINE>}
| blacklist url-list <URL-LIST-NAME> | Associates a URL list with this URL filter. When associated with a blacklist
rule, all URLs listed in the specified URL list are blacklisted. URL lists are
customized categories included in the custom filter-level setting. URL lists
enable an administrator to blacklist or whitelist URLs in addition to the built-in
categories. For more information on configuring a URL list, see url-list .
|
| precedence <1-500> | Configures the precedence value for this blacklist rule. Rules are applied in the increasing order of their precedence. Therefore, rules with lower precedence are applied first. |
| description <LINE> | Optional. Configures a description (not exceeding 80 characters) for this blacklist rule. Enter a description that allows you to identify the purpose of the rule. |
nx9500-6C8809(config-url-filter-test)#blacklist level medium-high precedence 10
nx9500-6C8809(config-url-filter-test)#blacklist category-type adult-content category alcohol-tobacco precedence 1
nx9500-6C8809(config-url-filter-test)#blacklist category-type security-risk category botnets precedence 3
nx9500-6C8809(config-url-filter-test)#show context url-filter test blacklist level medium-high precedence 10 blacklist category-type security-risk category botnets precedence 3 blacklist category-type adult-content category alcohol-tobacco precedence 1 nx9500-6C8809(config-url-filter-test)#
| no (url-filter-config-mode-commands) | Removes a blacklist rule from this URL filter. Specify the category-type, category, and precedence to identify the blacklist rule. The identified rule is removed form the URL filter. |