Canon i-SENSYS LBP113w User Manual download pdf (Page 135)

Conguring the Network Security Settings

2357-033

Authorized users may incur unanticipated losses from attacks b

y malicious third parties, such as sning, spoong,

and tampering of data as it ows over a network. To protect your important and valuable information from these

attacks, the machine supports the following features to enhance security and secrecy.

Firewall Settings

Unauthorized access by third parties, as well as network attacks and intrusions, can be blocked by limiting

communication only to devices that have a specic IP addr

ess.

Restricting Communication by Using

Fire

walls(P. 137)

Changing Port Numbers

A protocol that is used to exchange information with other devices is assigned port numbers that are

predetermined accor

ding to the type of protocol. The port number must be the same for all communication

devices; therefore, changing it to an arbitrary number is important to prevent hacking from outside.

Changing Port Numbers(P. 141)

Proxy Settings

When the client devices are connected to an external network, communication is established through the proxy

server. When the pro

xy server is used, websites can be browsed more safely, therefore, security can be

expected to be enhanced.

Setting a Proxy(P. 142)

TLS Encrypted Communication

TLS is a protocol for encryption for data sent over a network and is often used for communication via a Web

browser or an e-mail application. TLS enables secure network communication when you access the machine

from a computer via the Remote UI. Conguring the Key and Certicate for TLS

(P. 144)

Managing the Machine

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Canon i-SENSYS LBP113w User Manual Page 135