ubuntu使用ap-hotspot建立WIFI热点

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具体方法如下：使用ap-hotspot来创建WIFI热点，而不要用Ad hoc。终端里输入：

$ sudo add-apt-repository ppa:nilarimogard/webupd8

$ sudo apt-get update

$ sudo apt-get install ap-hotspot

$ sudo ap-hotspot configure //这一步会检查ubuntu的网络和WIFI接口，确定后会提示你配置热点，输入ssid和密码之类的就行了

$ sudo ap-hotspot start

好了，Android手机顺利识别并连接上了。

参数使用说明：

tehero@tehero-pc:/tmp$ sudo ap-hotspot config

Usage: ap-hotspot [argument]

start start wireless hotspot//开始使用

stop stop wireless hotspot//停止使用

restart restart wireless hotspot//重启

configure configure hotspot//配置使用

安装成功后配置过程如下：

tehero@tehero-pc:/tmp$ sudo ap-hotspot configure

Detecting configuration...

Detected eth0 as the network interface connected to the Internet. Press ENTER if this is correct or enter the desired interface below (e.g.- eth0, ppp0 etc.)://默认按Enter即可

Detected wlan0 as your WiFi interface. Press ENTER if this is correct or enter the desired interface (e.g.- wlan1)://默认按Enter即可

Enter the desired Access Point name or press ENTER to use the default one (myhotspot):

//Wifi名字

Enter the desired WPA Passphrase below or press ENTER to use the default one (qwerty0987):

//wifi 密码

使用篇：

tehero@tehero-pc:/tmp$ sudo ap-hotspot start

Starting Wireless Hotspot...

Wireless Hotspot active

出现如上字样即可

ubuntu14.04

问题集锦篇：

1、无法出现Wireless Hotspot active，并一直保持Starting Wireless Hotspot...

hostapd默认版本有bug

解决方法：

移除hostapd

sudo apt-get remove hostapd

然后：

64 bit

<code>cd /tmpwget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wpa/hostapd_1.0-3ubuntu2.1_amd64.debsudo dpkg -i hostapd*.debsudo apt-mark hold hostapd</code>

32bit：

<code>cd /tmpwget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wpa/hostapd_1.0-3ubuntu2.1_i386.debsudo dpkg -i hostapd*.debsudo apt-mark hold hostapd</code>

 Ubuntu下使用ap-hotspot出现“Another process is already running"问题的解决方案

问题描述：
This is the message displayed in my terminal screen when I typed
sudo ap-hotspot startAnother process is already running
Which process is running and how do I stop it?

解决方法：
I found this solution
sudo rm /tmp/hotspot.pid
this will delete the process id created temporarily and no more the error is displayed. This worked in my case.

关键连接

http://www.webupd8.org/2013/06/how-to-set-up-wireless-hotspot-access.html

ubuntu12.04

I just fix the same problem, try this:

sudo nano /etc/NetworkManager/NetworkManager.conf

Change the line that says:

dns=dnsmasq

To:

#dns=dnsmasq

Restart Network Manager:

sudo service network-manager restart

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