Practice: configure the wpa client in Linux

Article Title: Practice: configure the wpa client in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Editor's note: This article is an application of wireless network technology, telling you how to configure the wpa client in Linux.

Kernel:

Bt tools # uname-

Linux bt 2.6.20-BT-PwnSauce-NOSMP #3 Sat Feb 24 15:52:59 GMT 2007 i686 i686 i386 GNU/Linux

Bt tools #

Nic:

Bt tools # lspci-vv | grep-I 394

. 0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)

Bt tools #

Operating system version:

Bt tools # cat/etc/slax-version

SLAX 6.0.0

Bt tools #

802.1x client version:

Bt ~ # Wpa_supplicant-v

Wpa_supplicant v0.5.7

Copyright (c) 2003-2006, Jouni Malinen and contributors

Bt ~ #

Bt tools #

Configuration file content: wpa

Bt ~ # Cat/etc/wpa_supplicant.conf

Network = {

Ssid = "youssid"

Psk = "youpassword"

}

Bt ~ #

Command and parameters:

Command: wpa_supplicant

Parameters used:

-B = run daemon in the background

-C = Configuration file

-I = interface name

Command execution example:

Wpa_supplicant-B-ieth0-c/etc/wpa_supplicant.conf

Obtain address:

Dhcpcd eth0

View the NIC status and parameters:

Bt ~ # Iwconfig eth0

Eth0 IEEE 802.11g ESSID: "youssid"

Mode: Managed Frequency: 2.462 GHz Access Point: 00: 00: 00: 00: 00: 00: 00

Bit Rate: 54 Mb/s Tx-Power: 14 dBm

Retry limit: 15 RTS thr: off Fragment thr: off

Encryption key: xxxx-xxxx Security mode: open

Power Management: off

Connection Quality = 74/100 Signal level =-57 dBm Noise level =-57 dBm

Rx invalid nwid: 0 Rx invalid crypt: 1 Rx invalid frag: 0

Tx excessive retries: 0 Invalid misc: 21 Missed beacon: 0

Bt ~ # Ifconfig eth0

Eth0 Link encap: Ethernet HWaddr xx: xx

Inet addr: 192.168.2.100 Bcast: 192.168.2.255 Mask: 255.255.255.0

Inet6 addr: fe80: 218: deff: feb0: 38e5/64 Scope: Link

Up broadcast notrailers running multicast mtu: 1500 Metric: 1

RX packets: 33 errors: 2 dropped: 31 overruns: 0 frame: 0

TX packets: 12 errors: 0 dropped: 0 overruns: 0 carrier: 0

Collisions: 0 fig: 1000

RX bytes: 11177 (10.9 KiB) TX bytes: 4324 (4.2 KiB)

Interrupt: 11 Base address: 0x2000 Memory: edf00000-edf00fff

In this way, linux can use wpa to access wireless networks, which is better than wep.