Chapter 4 Firewall
Value | Description |
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"[xyz]\"images" | The literal string [xyz]"images" |
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\x | If x is a, b, f, n, r, t, or v, then the |
| \x; Otherwise, a literal X. This is used to escape operators |
| such as *. |
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\0 | A NULL character |
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\123 | The character with octal value 123 |
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\x2a | The character with hexadecimal value 2a |
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(r) | Matches an r; where r is any regular expression. You can |
| use parentheses to override precedence |
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Rs | The regular expression r, followed by the regular |
| expression s |
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rs | Either an r or an s |
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#<n># | Inserts an end node causing regular expression matching |
| to stop when reached. The value n is returned |
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URL Test
Use the URL Test dialog to determine if a URL is covered by one of Web Filter Service category filters.
Check the Category of a URL
STEP 1
STEP 2
STEP 3
From the LSM menu, select Firewall > Web Filtering. Then, select the URL Test tab.
On the URL Test page in the Test URL table, type the URL you want to check.
Click Test to display the result.
One of the following messages displays:
• A message showing the category for the URL, for example:
www.bbc.co.uk is in the News Productivity Category
•Error. Unable to contact categorization server
This message refers to the server selected on the Web Filtering page. To resolve the error:
•Error. Device is not licensed to use the 3Com
Purchase or renew the subscription for the Web Filter Service.
96 X Family LSM User’s Guide V 2.5.1