Wireless Configuration Tool under Linux

1. Introduction

The Wireless Client Configuration tool under Linux has wireless tools for Linux and WPA supplicant
The difference between the two is that the former support network is not encrypted or WEP encryption, the latter supports the WPA encryption type

The Wireless Server Configuration tool under Linux has HOSTAPD

2. Wireless Tools for Linux

Wireless Tools for Linux is a Linux command-line toolkit for setting up wireless devices that support the Linux Wireless Extension (LWE)
Wireless Extension (WE) is a common set of APIs that can be configured and counted in user space for generic Wireless LANs.
Its advantage is that
-Manage a wide variety of wireless LANs with just a single set of tools, but what are they, as long as the driver supports wireless extension?
-Another benefit is that you can change these parameters without restarting the drive or Linux

Wireless Tools (WT) is the toolset used to manipulate Wireless extensions, which uses the character interface, although coarse, but supports all Wireless Extension.
While there are many other tools for managing wireless extensions, wireless tools is a reference implementation that includes the following tools:

Iwconfig: Set Basic wireless Parameters Iwlist:   scan, List frequency, bitrate, key, etc. iwspy:    get the quality of each node link (only the nodes connected to it) Iwpriv:   Operation Wireless Extensions specific driver Ifrename: Naming interfaces based on various static standards

3. WPA supplicant

The tool includes a major program wpa_supplicant and WPA_CLI etc.

Wpa_supplicant runs in the background as a daemon, supporting different front-end programs such as WPA_CLI
Before Wpa_supplicant is used, the network interface must be available (the physical interface is valid and enabled, the driver is loaded), or wpa_supplicant exits immediately
High-level applications such as DHCP are required after the network is configured for Wpa_supplicant

The usual startup methods are as follows:

Wpa_supplicant-iwlan0-c/etc/wpa_supplicant.conf-dwpa_supplicant-iwlan0-c/etc/wpa_supplicant.conf-b

Reference Document: <wpa_supplicant man page>

Wireless Configuration Tool under Linux