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authorRobby Workman <rworkman@slackware.com>2010-01-11 23:22:22 -0600
committerRobby Workman <rworkman@slackware.com>2010-01-11 23:22:22 -0600
commit2168ea8b1650198e0b91215adc5ad52c42651440 (patch)
tree5d3b376139fbac81aa77f021152a6a835b0ef2b8 /chapter_14.xml
downloadslackbook-2168ea8b1650198e0b91215adc5ad52c42651440.tar.xz
Initial commit of the slackbook sources from Alan's master copy.
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+<?xml version="1.0"?>
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "/usr/share/xml/docbook/xml-dtd-4.5/docbookx.dtd">
+
+<chapter>
+<title>Wireless Networking</title>
+
+<section>
+<title><application>iwconfig</application></title>
+
+<para>
+Wireless networking is somewhat more complicated than traditional wired
+networking, and requires additional tools for setup. Slackware includes
+a diverse collection of wireless networking tools to allow you to
+configure your wireless network interface card (WNIC) at the most basic
+level. We won't cover everything here, but should give you a solid
+foundation to get up and running quickly. The first tool we are going
+to look at is <application>iwconfig</application>(8). When run without
+any argument, <application>iwconfig</application> displays the current
+wireless information on any and all NICs on your computer.
+</para>
+
+
+<screen><prompt>darkstar:~# </prompt><userinput>iwconfig</userinput>
+lo no wireless extensions.
+
+eth0 no wireless extensions.
+
+wmaster0 no wireless extensions.
+
+wlan0 IEEE 802.11abgn ESSID:"nest"
+ Mode:Managed Frequency:2.432 GHz Access Point:
+00:13:10:EA:4E:BD
+ Bit Rate=54 Mb/s Tx-Power=17 dBm
+ Retry min limit:7 RTS thr:off Fragment thr=2352 B
+ Encryption key:off
+ Power Management:off
+ Link Quality=100/100 Signal level:-42 dBm
+ Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
+ Tx excessive retries:0 Invalid misc:0 Missed beacon:0
+
+tun0 no wireless extensions.
+</screen>
+
+<para>
+Unlike wired networks, wireless networks are "fuzzy". Their borders are
+hard to define, and multiple networks may overlap one another. In order
+to avoid confusion, each wireless network has (hopefully) unique
+identifiers. The two most basic identifiers are the Extended Service
+Set Identifier (ESSID) and the channel or frequency for radio
+transmission. The ESSID is simply a name that identifies the wireless
+network in question; you may have heard it referred to as the network
+name or something similar. Typical wireless networks operate on 11
+different frequencies. In order to connect to even the most basic
+wireless network, you will have to setup these two pieces of
+information, and possibly others, before setting up things like the
+WNIC's IP address. Here you can see that my ESSID is set to "nest" and
+my laptop is transmitting at 2.432 GHz. This is all that is required to
+connect to an unencrypted wireless LAN. (For any of you out there
+expecting to come to my house and use my unencrypted wireless, you
+should know that you'll have to break a 2048-bit SSL key before the
+access point will let you communicate with my LAN.)
+</para>
+
+</section>
+
+<section>
+<title>Wired Equivilant Protection (or Lack Thereof)</title>
+
+<para>
+Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
+eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
+minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip
+ex ea commodo consequat. Duis aute irure dolor in reprehenderit in
+voluptate velit esse cillum dolore eu fugiat nulla pariatur.
+</para>
+
+</section>
+
+<section>
+<title>WPA</title>
+
+<para>
+Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
+eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
+minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip
+ex ea commodo consequat. Duis aute irure dolor in reprehenderit in
+voluptate velit esse cillum dolore eu fugiat nulla pariatur.
+</para>
+
+</section>
+
+<section>
+<title>rc.inet1.conf revisited</title>
+
+</section>
+
+</chapter>