ZyXEL Communications ZyWALL 5 User Manual page 163

LABEL
Java
Cookies
Web Proxy
Schedule to Block
Content filtering scheduling applies to the Filter List, Customized sites and Keywords. Restricted web server
data, such as ActiveX, Java, Cookies and Web Proxy are not affected.
Always Block
Block From/To
Message to display when a site is blocked
Denied Access Message
Exempt Computers
Enforce content filter
policies for all computers
Include specified
address ranges in the
content filter
enforcement
Exclude specified
address ranges from the
content filter
enforcement
Add Address Ranges
From
To
Address List
Add Range
Delete Range
Apply
Reset
Content Filtering Screens
Table 11-1 Content Filter : General
Java is a programming language and development environment for building
downloadable Web components or Internet and intranet business applications of
all kinds.
The ZyWALL allows access to the web site where you register for content filtering
even if you block Java applets.
Cookies are files stored on a computer's hard drive. Some web servers use them
to track usage and provide service based on ID.
A server that acts as an intermediary between a user and the Internet to provide
security, administrative control, and caching service. 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.
Click this option button to have content filtering always active with Time of Day
limitations not enforced. This is enabled by default.
Click this option button to have content filtering only active during the time interval
specified. In the Block From and To fields, enter the time period, in 24-hour
format, during which content filtering will be enforced.
Enter a message to be displayed when a user tries to access a restricted web site.
The default message is "Please contact your network administrator!!"
Select this checkbox to have all users on your LAN follow content filter policies
(default).
Select this checkbox to have a specific range of users on your LAN follow content
filter policies.
Select this checkbox to exempt a specific range of users on your LAN from content
filter policies.
Type the beginning IP address (in dotted decimal notation) of the specific range of
users on your LAN.
Type the ending IP address (in dotted decimal notation) of the specific range of
users on your LAN, then click Add Range.
This text field shows the address ranges that are blocked.
Click Add Range after you have filled in the From and To fields above.
Click Delete Range after you select the range of addresses you wish to delete.
Click Apply to save your changes back to the ZyWALL.
Click Reset to begin configuring this screen afresh.
ZyWALL 5 Internet Security Appliance
DESCRIPTION
11-3