Changing the Filter Settings 69
Cookies
Cookies are used by Web servers to track usage. Unfortunately, cookies
can be programmed not only to identify the visitor to the site, but also to
track that visitor's activities. Because they represent a potential loss of
privacy, some administrators may choose to block cookies.
Web Proxy
When a proxy server is located on the WAN it is possible for LAN users to
circumvent content filtering by pointing to this proxy server. This feature
disables access to proxy servers located on the WAN. It has no effect on
those located on the LAN.
Setting Blocking
Options
The following is a list of the two alternative blocking options:
Log and Block Access
When selected, the Firewall logs and blocks access to all sites on the Web
Site Filter, custom, and keyword lists.
Log Only
When selected, the Firewall logs and then allows access to all sites on the
Web Site Filter, custom, and keyword lists. Use this function to monitor
inappropriate usage without restricting access.
Specifying the
Categories to Filter
The Web Site Filter can control access from the LAN to thousands of Web
sites that might be deemed inappropriate for your organization. Twelve
selectable Web site categories are provided so Internet access can be
tailored to the needs of the organization. Check the boxes for those
categories you wish to block. See “Introducing the Web Site Filter” on
page 153 for a detailed explanation.
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Violence/Profanity
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Partial Nudity
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Full Nudity
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Sexual Acts
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Gross Depictions
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Intolerance
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Satanic/Cult
DUA1611-0AAA02.book Page 69 Thursday, August 2, 2001 4:01 PM
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