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author | Robby Workman <rworkman@slackware.com> | 2010-01-11 23:22:22 -0600 |
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committer | Robby Workman <rworkman@slackware.com> | 2010-01-11 23:22:22 -0600 |
commit | 2168ea8b1650198e0b91215adc5ad52c42651440 (patch) | |
tree | 5d3b376139fbac81aa77f021152a6a835b0ef2b8 /chapter_14.xml | |
download | slackbook-2168ea8b1650198e0b91215adc5ad52c42651440.tar.xz |
Initial commit of the slackbook sources from Alan's master copy.
Diffstat (limited to 'chapter_14.xml')
-rw-r--r-- | chapter_14.xml | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/chapter_14.xml b/chapter_14.xml new file mode 100644 index 0000000..9bbe28a --- /dev/null +++ b/chapter_14.xml @@ -0,0 +1,98 @@ +<?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> |