McAfee firewall 2.1-getting started Benutzerhandbuch

Getting Started

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 It is really important to choose a password that others will not guess. 
Choosing words, such as "open sesame" is a poor choice because there are 
password guessing programs that systematically try every word in the 
dictionary as well as common phrases, names, dates and other predicatable 
entries. It is better to choose several unrelated words, letters mixed with 
numbers, or completely random characters. The more, the better. There are 
password generation programs that can help you choose. They may help.

It is better to use a new password every time you make an important 
configuration change. Every file you create with a password is "valid" in that 
McAfee Firewall will see that it matches the password you used for it. Using a 
new password prevents someone from secretly replacing an older 
configuration file for a newer one.

Trojans such as BO and Netbus can log keyboard stokes. Therefore, they can 
log a password as you type it. While McAfee Firewall helps you detect trojans, 
you must be diligent in keeping them off your computer(s) before they 
compromise the security systems you put in place.

It is also good to have an anti-virus system  such as McAfee 

VirusScan installed on your computer to ensure protection from Trojans 
and other known viruses.