"Fun Raspberry Pi" Raspberry Pi 3B + Configure the wireless WiFi

Foreword

Cable also convenient to spend money, there are built-in WiFi wireless module Why not, the future belongs to 5G.

Network mode

Here we introduce two types of network modes, WPA-Personal and WPA-Enterprise.

WPA-Personal

Most home networks belonging to this mode, when the password is set on a wireless router or access point (the AP), the user must enter a password to connect to the network Wi-Fi.

In PSK mode, it can not individually or collectively manage wireless access. A password for all users, manually modify once on the original wireless router or AP, it will end on manually change all wireless clients.

In the wireless client password is stored. So, anyone on your computer can be connected to a network, you can also see the password.

WPA-Enterprise

This mode provides security business environment required for your wireless network. Set up more complicated, it can be personalized and centralized control access to Wi-Fi networks. When a user tries to connect to the network, they need to show their login credentials.

This mode supports 802.1x RADIUS authentication for the deployment of RADIUS server. Only connect RADIUS server for client authentication should use WPA-Enterprise.

Users never deal with the actual encryption key. After presenting their user login credentials, they are safely created and assigned to each user session in the background. This prevents people obtain the network key from your computer.

Configuration

Home Network Configuration

Use the command: sudo raspi-config carried Raspberry Pi configuration, enter the following interface, select 2. Network Options.

Select N2 wi-fi.

Enter the SSID and password, SSID is the name of Wifi.

Of course you can also be connected by way of WiFi, the following command can be used to scan for wireless networks close to:

sudo iwlist wlan0 scan

Add password WIFI network, a wireless network can be provided to be connected by configuring wpa_supplicant.conf.

sudo vim /etc/wpa_supplicant/wpa_supplicant.conf

In the end of the file add the code, and replace ssid_name and password can be.

network={
        ssid="ssid_name"
        key_mgmt=WPA-PSK
        psk="password"
}

by

ifconfig wlan0

You can view the IP address is assigned successfully

Enterprise Certified Network Configuration

Enterprise network needs account password.

Wireless configuration editor:

sudo vim /etc/wpa_supplicant/wpa_supplicant.conf

for reference only:

country=GB
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
  ssid="eduroam"
  key_mgmt=WPA-EAP
  pairwise=CCMP TKIP
  group=CCMP TKIP
  eap=PEAP TTLS
  # 账号
  identity="user_sample"
  # 密码
  password="password_sample"
  #认证证书，如果没有注释掉即可
  ca_cert="/etc/certs/cacert.pem"
  phase1="peapver=0"
  phase2="MSCHAPV2"
  scan_ssid=1
  mode=0
  auth_alg=OPEN
  proto=WPA RSN
  proactive_key_caching=1
  }

After the configuration execute the command:

wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf  -B
# 出现以下提示说明配置成功
Successfully initialized wpa_supplicant

kill off wpa_supplicant program being executed

sudo killall -q wpa_supplicant

summary

由于安装的 Linux 系统没有图形界面，可能会比有图形的稍微麻烦一下下。

参考

WPA_supplicant

校园无线覆盖解决方案

WPA-Personal与WPA-Enterprise之间的区别