Watchguard Firebox X15 User Manual page 172

Configuring WebBlocker
7
Use the When the WebBlocker server is unavailable, access to
all sites is drop-down list to select if the Firebox is to allow or
deny all traffic when it cannot connect to the WebBlocker
server.
If you allow web traffic when the WebBlocker server is unavailable, each
user who sends a web request must wait 45 seconds for the Firebox to
try to connect to the WebBlocker server and time-out. After 45 seconds,
the Firebox will allow access to the web site. When the Firebox X Edge
can connect to the WebBlocker server again, it will automatically start
to apply WebBlocker rules again.
8
Use the When the WebBlocker license expires, access to all
sites is drop-down list to select if the Firebox is to allow or deny
all web traffic if the WebBlocker subscription expires.
If the WebBlocker subscription is renewed, the Firebox will keep the
previous configuration and apply WebBlocker rules again.
9
Add a custom message for users to see when they try to access a
web page that is blocked by WebBlocker. This message will
appear with the usual WebBlocker message.
The message cannot contain HTML tags, the less than (<) or greater than
(>) symbols, and cannot be more than 1000 characters in length.
For example, you can enter a message "This web site does not comply
with our Internal Use Policy." If a user tries to access a web site that is
blocked by WebBlocker, the user's browser will show:
Request for URL http://www.some-denied-
site.com/denied by WebBlocker: blocked for
Adult/Sexually Explicit.
This web site does not comply with our
Internal Use Policy.
10 Click Submit.
158 WatchGuard Firebox X Edge