Operation notes: Configure wpa in Linux

Linux has developed rapidly in recent years. Many people abandon Microsoft's Linux operating system. The powerful functions of Linux are so attractive. Here we will introduce some Linux knowledge. Today we will explain how to configure the wpa client in Linux. I hope you can learn how to configure wpa in Linux.

Kernel:

 
 

  
  
bt tools # uname -a  
  
  
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  
  
  
03:00.0 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  
  
  
Bit Rate:54 Mb/s Tx-Power:14 dBm  
  
  
Retry limit:15 RTS thr:off Fragment thr:off  
  
  
Encryption key:xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx Security mode:open  
  
  
Power Management:off  
  
  
Link 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:xx:xx: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 txqueuelen:1000  
  
  
RX bytes:11177 (10.9 KiB) TX bytes:4324 (4.2 KiB)  
  
  
Interrupt:11 Base address:0x2000 Memory:edf00000-edf00fff 
 
 

The above is the wpa configuration method in Linux, so that Linux can use wpa to access the wireless network, which is better than wep.

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