As the title
indicates this chapter is all about wireless networks. It begins with the
fundamentals by explaining what a computer network is. Very simply it could be
one or several computers connected to a server and possible a printer. One of
the distinctions in classifying computer networks is the distance between them.
The first category is the local area network (LAN), next the wide area network
(WAN), and last a personal area network (PAN). A LAN is typically on a floor of
an office building, a WAN connects computers over a large geographical area,
and a PAN is usually up to ten feet away.
The second
means of classification is by type of connection. Typically networks were
connected by cable or fiber to each device, however today wireless connections
are used to connect computers. One such connection is called a wireless local
area network (WLAN).
The text
goes on to talk about network interface cards, routers, firewalls, access
points and many more important topics as they relate to Wireless networks. It
continues by describing the process in which a device connects to the router by
knowing the service set identifier (SSID). Once an attacker has this data
connecting to the network is not difficult.
I found this
chapter to be an excellent resource for wireless network connectivity. It
walked you through the various parts of the system, how wireless networks work,
and even how to safeguard your system. It was also interesting to note the
various potential assaults attackers use to gain access to one’s computer. It
provided some great advice regarding virtual private networks and using public
wireless networks securely. After going through this chapter I will definitely
be making some changes to my system.
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