ZyXEL Communications A-6000 manual Isp, Lan, Mac, Nat, Ndis, Nic, Pap

A-6000 High Speed, Long Range Ethernet Wireless Bridge

dangerous can cause your system to crash.

ISP	Internet Service Providers provide connections into the Internet for home users
	and businesses. There are local, regional, national, and global ISPs. You can
	think of local ISPs as the gatekeepers into the Internet.
LAN	Local Area Network is a shared communication system to which many
	computers are attached. A LAN, as its name implies, is limited to a local area.
	This has to do more with the electrical characteristics of the medium than the
	fact that many early LANs were designed for departments, although the latter
	accurately describes a LAN as well. LANs have different topologies, the most
	common being the linear bus and the star configuration.
Linux	A version of the UNIX operating system designed to run on IBM Compatible
	computers.
Logic Bomb	A virus that only activates itself when certain conditions are met. Logic bombs
	usually damage files or cause other serious problems when they are activated.
MAC	On a local area network (LAN) or other network, the MAC (Media Access
	Control) address is your computer's unique hardware number. (On an Ethernet
	LAN, it's the same as your Ethernet address.) The MAC layer frames data for
	transmission over the network, then passes the frame to the physical layer
	interface where it is transmitted as a stream of bits.
Name Resolution	The allocation of an IP address to a host name. See DNS
NAT	Network Address Translation is the translation of an Internet Protocol address
	used within one network to a different IP address known within another network
	- see also SUA.
NDIS	Network Driver Interface Specification is a Windows specification for how
	communication protocol programs (such as TCP/IP) and network device drivers
	should communicate with each other.
NetBIOS	Network Basic Input / Output System. NetBIOS is an extension of the DOS
	BIOS that enables a PC to connect to and communicate with a LAN.
Network	Any time you connect 2 or more computers together so that they can share
	resources, you have a computer network. Connect 2 or more networks together
	and you have an internet.
NIC	Network Interface Card. A board that provides network communication
	capabilities to and from a computer system. Also called an adapter.
Node	Any single computer connected to a network
Packet Filter	A filter that scans packets and decides whether to let them through.
PAP	Password Authentication Protocol PAP is a security protocol that requires users
	to enter a password before accessing a secure system. The user’s name and
	password are sent over the wire to a server, where they are compared with a
	database of user account names and passwords. This technique is vulnerable
	to wiretapping (eavesdropping) because the password can be captured and
	used by someone to log onto the system.
Password	A program that uses a dictionary of words, phrases, names, etc. to guess a
Cracker	password.
Password	A system of encrypting electronic files using a single key or password. Anyone
encryption	who knows the password can decrypt the file.
Password	The encrypted password is no visible in the passwd file but stored in a shadow
Shadowing	file that is only readable by root. This prevents brute force attacks on the
	encrypted field to guess the password. see e.g.:
	http://whatis.com/shadowpa.htm
Penetration	Gaining access to computers or networks by bypassing security programs and
	passwords.
Phreaking	Breaking into phone or other communication systems. Phreaking sites on the
	Internet are popular among crackers and other criminals

CLI commands 5-4