Security During Network Connection; Computer Virus; Encrypting The Communication Data; Firewall - Fujitsu DESKPOWER C600 User Manual

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2 Security during Network

Connection

Information is often transferred via the network such as Internet and e-mails. Therefore, the

possibility of computer virus infection and information leakage due to hacking is always there.

The following, introduces the security functions to protect the PC connected to the network.

Computer virus infects the PC through the Internet and e-mails, leading to data corruption, loss

of data or system malfunction. If you use a PC which is infected with a computer virus you may

spread the virus on other PCs without knowing it.

When data are being exchanged via the network, it may be leaked from the network. The encrypted

data transmission rate is increased to avoid such problems.

Windows XP and 2000 OSs have standard data encryption functionalities. The following introduces

an example of Internet Protocol Security (IPSec) encryption functionality.

The IPSec allows users to encrypt data during TCP/IP protocol communication independent from

the applications used.

If you are using a secured 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 affecting another job.

See the Windows Help for details.

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 create 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.

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