Linux install WiFi driver, open hotspot

This installation of the Debian system when the installation prompts the WiFi hardware need to install non-free firmware to run, and tell the hardware to install the firmware name is Iwlwifi-2030-6.ucode. Is the driver of the Iwlwifi driver for my wireless hardware model 2230.

Once the system is installed, you can install it directly using the Apt-get install Iwlwifi. After that, you can use WiFi normally. However, a generic WiFi driver is used for the Intel-wirelees network card. I want to install the latest driver for this NIC model. Here's how:

1. Use the LSPCI command to view the network card model 2230, go to https://wiki.debian.org/website to find WiFi driver. Get a deb package. WiFi is available after installation.

Open hotspot

You need to install Hostapd+isc-dhcp-server, all using Apt-get installation. Here is the configuration.

HOSTAPD Configuration

You can view the description document under the/USR/SHARE/DOC/HOSTAPD path to configure. More content. Use the simplified configuration of others directly below.

1. Modify the/usr/hostapd/hostapd.conf. No words to create a. Modify the name of your network card.

interface=wlp6s0 Driver=nl80211  hw_mode=g  Channel=1   SSID=mywifiWPA=2  wpa_key_mgmt=wpa-PSK  wpa_pairwise =CCMP  wpa_passphrase=12345678  

2. When you start HOSTAPD, you can search for Mywifi, but you cannot connect.

sudo hostapd-b/etc/hostapd.conf

Configure DHCP

Using Isc-dhcp-server here, you can also use other DHCP server programs.

1. Modify this file/etc/default/isc-dhcp-server, change the INTERFACESV4 value to the name of your network card.

2. Modify the/etc/dhcp/dhcpd.conf. Modify the following two places.

Configuring forwarding rules using Iptables

Turn on the Linux forwarding function, temporarily open

sudo sysctl-w net.ipv4.ip_forward=1  

Permanently modify, change the configuration file/etc/sysctl.conf

#清除所有规则

#转发到eth0网卡

#查看转发规则

sudo iptables-l

The script is as follows

#!/bin/bash#need Root Identify#su-Root <<eof#pwd, #exit, #EOF This  isThe step.# close the Wifi.open The fly mode.close the fly mode.# then.create the wifispot. #Now. We can stop the Managent of the networkmanagernmcli n off#1. Open Hostapdkillall HOSTAPDHOSTAPD-b/etc/hostapd/hostapd.conf#2. Initial WiFiInterfaceConfigurationip addr del192.168.201.1/ -Dev Wlp6s0ip addr Add192.168.201.1/ -Dev Wlp6s0sleep2########## #Start DHCP, comment out/Add relevant section##########/etc/init.d/isc-dhcp-server restart########### #Enable natiptables-F iptables-T nat-a postrouting-o ppp0-J Masquerade #Enable LinuxreturnSysctl-W net.ipv4.ip_forward=1

Problem: always conflict with NetworkManager when opening HOSTAPD. This is not a direct use of the NetworkManager management network

Nmcli N Off

Failed to start DHCP. Sometimes it is because the NIC is not configured with an IP address. So you can check it.

Linux install WiFi driver, open hotspot