McAfee VirusScan Plus, User Manual

Page: 101 / 205

Chapter 19 Introduction 99
Allow access to an existing system service port
You can open an existing port to allow remote network access to
a system service on your computer.
Note: An open system service port can make your computer
vulnerable to Internet security threats; therefore, only open a port
if necessary.
1
On the McAfee SecurityCenter pane, click Internet &
Network , then click Configure .
2
On the Internet & Network Configuration pane, under
Firewall protection is enabled , click Advanced .
3
On the Firewall pane, click System Services .
4
Under Open System Service Port , select a system service to
open its port.
5
Click Edit .
6
Do one of the following:
ƒ
To open the port to any computer on a trusted, standard,
or public network (for example, a home network, a
corporate network, or an Internet network), select
Trusted, Standard, and Public .
ƒ
To open the port to any computer on a standard network
(for example, a corporate network), select
Standard
(includes Trusted) .
7
Click OK .
Block access to an existing system service port
You can close an existing port to block remote network access to
a system service on your computer.
1
On the McAfee SecurityCenter pane, click Internet &
Network , then click Configure .
2
On the Internet & Network Configuration pane, under
Firewall protection is enabled , click Advanced .
3
On the Firewall pane, click System Services .
4
Under Open System Service Port , clear the check box
beside the system service port that you want to close.
5
Click OK .