HP SuperStack Firewall Series Manual de usuario descargar pdf (Pagina 23)

Firewall Features 23

The Firewall will protect your network against the following Denial of

Service attacks:

■

Ping of Death

■

Smurf Attack

■

SYN Flood

■

LAND Attack

■

IP Spoofing

■

Teardrop

To find more information on DoS and other attacks refer to Chapter 13,

“Types of Attack and Firewall Defences”

Advanced users can extend the security functions of the Firewall by

adding network access rules and user privileges. See “Examples of

Network Access Rules” on page 200 and “User Privileges” on page 205

for more information.

Web URL Filtering You can use the Firewall to monitor and restrict LAN users from accessing

inappropriate information on the Internet. You can block access to this

information or record attempts to access it in a log. See “Filter Settings”

on page 162 for more information.

You can create a list of all forbidden URLs to which you want to restrict

access. Alternatively, you can restrict access to the Internet to certain

trusted URLs. See “Setting up Trusted and Forbidden Domains” on

page 165 for more information.

Web site technologies such as cookies and Java and ActiveX applets give

enhancements to web pages, but hackers may use the technologies to

steal or damage data. The Firewall can block these potentially damaging

applications from being downloaded from the Internet, or allow them

only from trusted sites. See “Filter Settings” on page 162 for more

information.

You can also use the optional SuperStack 3 Web Site Filter to extend

these filtering capabilities of your Firewall. It provides a list of Web site

categories that might be considered inappropriate for business use. The

Web Site Filter updates the Firewall with the latest URLs matching the

selected categories. You can block access to these sites or log them. The

Firewall is supplied with a one-month free subscription. You can then

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HP SuperStack Firewall Series Manual de usuario Pagina 23