The URL Clarification Category
The adeptness to bind user Web admission to specific Web sites is adorable in some
organizations for ethical and ability reasons. PDM provides a graphical interface
to the PIX firewall URL clarification mechanisms via the URL Filtering
www.syngress.com
Figure 9.35 AAA: The Authentication Prompt Screen
PIX Device Manager • Affiliate 9 493
category accessible from the System Backdrop tab.The URL Clarification awning is
shown in Figure 9.36.
As you can see, you can configure the PIX firewall to use third-party services
to actuate adapted Web content. Currently accessible casework include
Websense and N2H2.To add a new server to the PIX configuration, baddest the
type of server from the URL Clarification Server radio buttons.Then bang the
Add button and baddest the PIX interface acclimated in filtering, IP abode of the filtering
server, and the agreement to be acclimated for filtering. Other attributes are configurable
from the Advanced URL Clarification window, as apparent in Figure 9.37.
After configuring URL Clarification properties, you charge add specific rules to
the PIX firewall.These rules are bent from the Clarification Rules radio
button beneath the Admission Rules tab.We altercate the Clarification Rules radio button
later in the chapter.