Fujitsu DESKPOWER C600 Series, Руководство пользователя

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Information is often transferred via the network such as Internet and e-mails. Therefore, the
possibility of infection to the computer virus and information leakage of the PC is increasing.
The following introduces the security functions to protect the PC connected to the network.
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Computer virus
The computer virus are infected with the PC through the Internet and e-mails, and the PC suffers
a damage to destroy its data or the PC may not start up at all. Also, if you use the PC which a virus
has been infected, you may spread the virus on other PCs without knowing it.
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Encrypting the communication data
When an important data is exchanged via the network, it may be leaked from the network. The
encrypted data transmission is increasing to avoid such problem.
The Windows XP and 2000 OSs have the standard data encryption function. The following
introduces an example of Internet Protocol Security (IPSec) encryption function.
The IPSec allows you to encrypt data during TCP/IP protocol communication independent from
the applications you are using.
Also, if you use a security LAN card, you can reduce the CPU load as the encrypted data
communication is processed by the card itself. Therefore, you can use the encrypted
communication without affectingon another job.
See the Windows Help for details.
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Firewall
If the PC is connected to an external network, the PC may be accessed illegally from the external
network and its data may be altered. To prevent such problem, you can make a wall which is called
a firewall between the internal and external networks and control any access from the outside.
The Windows XP has the standard Internet Connection Firewall (ICF).
See the Windows Help for the ICF.
2 Security during Network
Connection
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