3Com 3C16111 - SuperStack 3 Firewall Web Site Filter, Руководство пользователя

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Terminology 13
Terminology
This section lists terminology used in this guide.
DMZ — Demilitarized Zone port. The Firewall has an extra port. If you
connect publicly-accessible servers and workstations to this port, they are
accessible from the Internet but still protected from Denial of Service
attacks
DoS Attacks — Denial of Service Attacks. An attempt to stop one of
your services running, such as a Web or FTP server. There are several kinds
of DoS attacks.
IP address — The Internet Protocol address is the network layer address
of a device assigned by the user or network administrator of an IP
network. An IP address consists of 32 bits divided into two or three fields:
Table 3 Text Conventions
Convention Description
Screen displays
This typeface represents information as it appears on
the screen.
Commands
The word “command” means that you must enter the
command exactly as shown and then press Return or
Enter. Commands appear in bold. Example:
To display port information, enter the following
command:
bridge port detail
The words “enter”
and “type” When you see the word “enter” in this guide, you
must type something, and then press Return or Enter.
Do not press Return or Enter when an instruction
simply says “type.”
Keyboard key names If you must press two or more keys simultaneously, the
key names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Words in italics Italics are used to:
■
Emphasize a point.
■
Denote a new term at the place where it is defined
in the text.
■
Identify menu names, menu commands, and
software button names. Examples:
From the Help menu, select Contents .
Click OK .
DUA1611-0AAA02.book Page 13 Thursday, August 2, 2001 4:01 PM