Filter
Top Products
2 Starter Guide SurfControl Web Filter for ISA v5.5
I
NTRODUCTION
Microsoft ISA Server Edition
1
MICROSOFT ISA SERVER EDITION
SurfControl Web Filter for ISA integrates fully with Microsoft ISA server, in order to prevent web based
threats. This edition of Web Filter also includes an anti-virus agent, which prevents infectious content by
filtering viruses at the Web gateway.
HOW WEB FILTER AND ISA SERVER INTERACT
1 A client makes a request via the ISA Server for the resource.
2 The ISA Server challenges for authentication.
3 The client negotiates authentication parameters and requests the resource again.
4 The ISA Server connects to the target server and requests the resource.
5 Data starts coming down from the target servers.
6 If the policy is set to block this request, Web Filter resets this connection mid-transmission.
7 If the request was blocked, the denied page is returned to the user.
Depending on whether you are using ISA Server 2000, 2004 or 2006, SurfControl Web Filter has the
following features:
ISA SERVER 2000
ISA S
ERVER 2004 AND 2006
In addition to the above features, SurfControl Web Filter for ISA Server 2004 and 2006 offers the addition
of an application filter as part of the Firewall Service. This allows the management and reporting of
protocols beyond HTTP, HTTPS and FTP when using the ISA Server firewall.
Table 1-1 Features of SurfControl Web Filter for Microsoft ISA Server 2000
Feature Description
Quick and easy to configure The Web Filter Configuration Wizard guides you through the
configuration process, so that you can begin filtering Web content as
soon as possible.
Seamlessly integrates with ISA as an
ISAPI filter
You can install Web Filter directly on to an existing ISA Server, for an
easy and secure filtering solution.
Ideal for implementing Acceptable Use
Policies
It’s easy to set up and maintain powerful, flexible rules that enforce your
Acceptable Use Policy.
Transparent to the desktop user Users in your organization know immediately if they have browsed to a
page that breaches your Acceptable Use Policy.