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Page 536 / 944 Scroll up to view Page 531 - 535
Chapter 32 Content Filtering
ZyWALL USG 50 User’s Guide
536
your list of content filter policies, create a denial of access message or specify a
redirect URL and check your external web filtering service registration status.
Figure 311
Configuration > Anti-X > Content Filter > General
The following table describes the labels in this screen.
Table 159
Configuration > Anti-X > Content Filter > General
LABEL
DESCRIPTION
General Settings
Enable Content Filter
Select this check box to enable the content filter.
Enable Content Filter
Report Service
Select this check box to have the ZyWALL collect category-based
content filtering statistics.
Policies
This is a list of the configured content filter policies.
Block web access
when no policy is
applied
Select this check box to stop users from accessing the Internet by
default when their attempted access does not match a content
filter policy.
Add
Click this to create a new entry. Select an entry and click
Add
to
create a new entry after the selected entry.
Edit
Select an entry and click this to be able to modify it.
Remove
Select an entry and click this to delete it.
Activate
To turn on an entry, select it and click
Activate
.
Inactivate
To turn off an entry, select it and click
Inactivate
.
Page 537 / 944
Chapter 32 Content Filtering
ZyWALL USG 50 User’s Guide
537
Move
To change an entry’s position in the numbered list, select it and
click
Move
to display a field to type a number for where you want
to put that entry and press [ENTER] to move the entry to the
number that you typed.
#
This column lists the index numbers of the content filter policies.
The ordering of the content filter policies is important as they are
used in the order they are listed. The ZyWALL checks requests for
Web sessions against the list of content filter policies (starting from
the first in the list). The ZyWALL’s content filter feature blocks or
allows the Web session according to the first matching content
filter policy and does not check any other content filter policies.
The ZyWALL does not perform content filter on Web session
requests that do not match any of the content filter policies.
Status
The activate (light bulb) icon is lit when the entry is active and
dimmed when the entry is inactive.
Address
A content filter policy applies to web access from the IP addresses
listed here.
any
means the content filter policy applies to all of the
web access requests that the ZyWALL receives from any IP
address.
Schedule
This column displays the name of the schedule for each content
filter policy. You can define different policies for different time
periods.
none
means the content filter policy applies all of the
time.
User
This column displays the individual or group to which this policy
applies.
any
means the content filter policy applies to all of the
web access requests that the ZyWALL receives from any user.
Filter Profile
This column displays the name of the content filter profile that
each content filter policy uses. The content filter profile defines to
which web services, web sites or web site categories access is to
be allowed or denied.
Denied Access
Message
Enter a message to be displayed when content filter blocks access
to a web page. Use up to 127 characters (0-9a-zA-Z;/?:@&=+$\.-
_!~*'()%,”). For example, “Access to this web page is not allowed.
Please contact the network administrator”.
It is also possible to leave this field blank if you have a URL
specified in the
Redirect URL
field. In this case if the content filter
blocks access to a web page, the ZyWALL just opens the web page
you specified without showing a denied access message.
Redirect URL
Enter the URL of the web page to which you want to send users
when their web access is blocked by content filter. The web page
you specify here opens in a new frame below the denied access
message.
Use “http://” or “https://” followed by up to 262 characters (0-9a-
zA-Z;/?:@&=+$\.-_!~*'()%). For example, http://192.168.1.17/
blocked access.
Table 159
Configuration > Anti-X > Content Filter > General (continued)
LABEL
DESCRIPTION
Page 538 / 944
Chapter 32 Content Filtering
ZyWALL USG 50 User’s Guide
538
32.3
Content Filter Policy Add or Edit Screen
Click
Configuration > Anti-X > Content Filter > General > Add or Edit
to
open the
Content Filter Policy
screen. Use this screen to configure a content
License Status
This read-only field displays the status of your content-filtering
database service registration.
Not Licensed
displays if you have not successfully registered and
activated the service.
Expired
displays if your subscription to the service has expired.
Licensed
displays if you have successfully registered the ZyWALL
and activated the service.
After you register for content filter, you can see
Chapter 32 on
page 540
for how to use the
Test Against Web Filtering Server
button. When the content filter is active, you should see the web
page’s category. The query fails if the content filter is not active.
You can view content filter reports after you register the ZyWALL
and activate the subscription service in the
Registration
screen
(see
Chapter 33 on page 557
).
License Type
This read-only field displays what kind of service registration you
have for the content-filtering database.
None
displays if you have not successfully registered and
activated the service.
Standard
displays if you have successfully registered the ZyWALL
and activated the service.
Trial
displays if you have successfully registered the ZyWALL and
activated the trial service subscription.
Apply new
Registration
This link appears if you have not registered for the service or only
have the trial registration. Click this link to go to the screen where
you can register for the service.
Expiration Date
This field displays the date your service license expires.
Apply
Click
Apply
to save your changes back to the ZyWALL.
Reset
Click
Reset
to return the screen to its last-saved settings.
Table 159
Configuration > Anti-X > Content Filter > General (continued)
LABEL
DESCRIPTION
Page 539 / 944
Chapter 32 Content Filtering
ZyWALL USG 50 User’s Guide
539
filter policy. A content filter policy defines which content filter profile should be
applied, when it should be applied, and to whose web access it should be applied.
Figure 312
Configuration > Anti-X > Content Filter > General > Add l
The following table describes the labels in this screen.
Table 160
Configuration > Anti-X > Content Filter > General > Add
LABEL
DESCRIPTION
Create new
Object
Use this to configure any new settings objects that you need to use in this
screen.
Schedule
Select a schedule to define when to apply this content filter policy. You can
define different policies for different time periods. For example, you could
have one policy that blocks access to certain categories of web sites during
working hours and another policy that allows access to certain categories
after the work day is over.
Select
none
to have the content filter policy apply all of the time.
Address
Select the address or address group for which you want to use this policy.
Select
any
to have the content filter policy apply to all of the web access
requests that the ZyWALL receives from any IP address.
Filter Profile
Use the drop-down list box to select the content filter profile that you want
to use for this policy. The content filter profile defines to which web
services, web sites or web site categories access is to be allowed or denied.
Use the content filter
Filter Profile
screens to configure the profiles.
User/Group
Use the drop-down list box to select the individual or group for which you
want to use this policy.
Select
any
to have the content filter policy apply to all of the web access
requests that the ZyWALL receives from any user.
OK
Click
OK
to save your changes back to the ZyWALL.
Cancel
Click
Cancel
to exit this screen without saving your changes.
Page 540 / 944
Chapter 32 Content Filtering
ZyWALL USG 50 User’s Guide
540
32.4
Content Filter Profile Screen
Click
Configuration > Anti-X > Content Filter > Filter Profile
to open the
Filter Profile
screen. A content filter profile defines to which web services, web
sites or web site categories access is to be allowed or denied.
Figure 313
Configuration > Anti-X > Content Filter > Filter Profile
The following table describes the labels in this screen.
32.5
Content Filter Categories Screen
Click
Configuration > Anti-X > Content Filter > Filter Profile > Add or Edit
to open the
Categories
screen. Use this screen to enable external database
content filtering and select which web site categories to block and/or log.
Note: You must register for external content filtering before you can use it. See
Section 10.2 on page 211
for how to register.
Table 161
Configuration > Anti-X > Content Filter > Filter Profile
LABEL
DESCRIPTION
Add
Click this to create a new entry.
Edit
Select an entry and click this to be able to modify it.
Remove
Select an entry and click this to delete it.
#
This column lists the index numbers of the content filter profiles.
Filter Profile Name
This column lists the names of the content filter profiles.

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