Chapter 43 Content Filtering
ZyWALL Series CLI Reference Guide
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43.4 Web Content Filter
The following section describes the commands for the web content filter.
43.4.1 General Web Content Filter Commands
The following table lists the commands that you can use for general web content filter configuration,
such as creating a denial of access message or specifying a redirect URL and checking your external
web filtering service registration status. Use the
configure terminal command to enter the
configuration mode to be able to use these commands. See Table 205 on page 368 for details about
the values you can input with these commands.
redirect_url
The URL of the web page to which you want to send users when their web access is
blocked by content filtering. The web page you specify here opens in a new frame below
the denied access message.
Use “http://” followed by up to 255 characters (0-9a-zA-Z;/?:@&=+$\.-_!~*'()%) in quotes.
For example, “http://192.168.1.17/blocked access”.
IPv6 format support:
http://[2001::1]/blocked_access
service_timeout
The value specifies the maximum querying time in seconds <1…60>
url
The URL of a web site in http://xxx.xxx.xxx format.
query_timeout
The value specifies the maximum querying time when testing the connection to an
external content filtering server or checking its rating for a URL. <1..60> seconds.
Table 205 Content Filter Command Input Values (continued)
LABEL DESCRIPTION
Table 206 content-filter General Commands
COMMAND DESCRIPTION
[no] content-filter block message
message
Sets the message to display when the Web Content Filter
blocks access to a web page. The
no command clears the
setting.
[no] content-filter block redirect
redirect_url
Sets the URL of the web page to which to send users when
their web access is blocked by the Web Content Filter. The
no command clears the setting.
content-filter passed warning flush
Clears the Zyxel Device’s record of sessions for which it has
given the user a warning before allowing access.
content-filter passed warning timeout
<1..1440>
Sets how long to keep records of sessions for which the Zyxel
Device has given the user a warning before allowing access.
content-filter url-cache clear
Clears all URLs from the Zyxel Device’s local Web Content
Filter cache.
content-filter url-cache clear url
Deletes the specified URL from the Zyxel Device’s local Web
Content Filter cache.
content-filter url-server test
commtouch
Firmware v4.50 or earlier
Enters the sub-command mode for testing URLs with the
legacy external Web Content Filter.