Termin ology
13
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: a network number and
a host number or a network number, a subnet number, and
a host number.
IP Spoof
— A type of DoS attack. An IP spoof uses a fake
IP address to bypass security settings which may bar access
from the real IP address.
IRC
— Internet Relay Chat. Provides a way of
communicating in real time with people from all over the
world.
ISP
— Internet Service Provider. A business that provides
Internet access to individuals or organizations.
Internet Firewall
— Used in this guide to refer to both the
OfficeConnect Internet Firewall 25 and the OfficeConnect
Internet Firewall DMZ.
LAND Attack
— A type of DoS attack. In a LAND attack, a
packet is sent that appears to come from the same address
and port that it is sent to. This can hang the machine to
which it is sent.
Management Station
— This is the workstation from
which you run the Web-based management interface for
the Internet Firewall.
Management Interface
— This is the Web-based
application which you use to set up the Internet Firewall to
protect your network from attack and to control access to
the Internet for LAN users.
NAT
— Network Address Translation. NAT refers to the
process of converting the IP addresses used within a private
network to Internet IP addresses.
NNTP
— Network News Transfer Protocol. This protocol is
used to distribute Usenet news articles over the Internet.
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