How to set up a wireless hotspot under ubuntu11 10?

It depends on whether the driver is supported, a lot of win downlink to linux is not good, it is a problem with the driver, the network card official does not give the driver, or the driver is very poor.

1. Install iw: sudo apt-get install iw

2. Check whether the network card supports: IW list to find the supported type, slowly find, AP monitor manager ad-hoc these keywords, there is AP master to achieve wireless AP, and there is ad-hoc to support AD-hoc mode.

Ubuntu method to set up a wifi hotspot.

Method 1: Network Manager

You can set it up with Ubuntu's built-in network manager.

Step 1: Open your system's network settings and turn on Network Connections. Click on the link at the bottom, then click Add on the right to add a wireless network;

Fill in an SSID, which is the wireless identifier sent by the computer later.

In the Mode bar, select ad-hoc;

Step 3: Switch to the WiFi Security tab. In Security, select WPA and WPA2 Individuals. Fill in the password in the Password field.

Switch to the IPv4 setup and select Share with other computers in Method.

Switch to the IPv6 settings and select Ignore in Methods.

Step 4: Finally, click Save to save the network. Connect to the network you just established, turn on Connect to hidden network. Select the network you established earlier and connect.

Note that this wireless is to share the network on the current computer, so please connect your broadband or something before that.

OK, at this time other laptops or Windows tablets can discover this wireless network. But... Android Mobile Phone may never find out...

It seems that the Android system does not support ad hoc.

Reference: Use Create a wireless wifi hotspot for mobile phones to access the Internet.

So, let's come to the second method.

Method 2: ap-hotspot

Here's how: Use AP-Hotspot to create a WiFi hotspot instead of ad hoc. Terminal:

sudo add-apt-repository ppa:nilarimogard/webupd8

sudo apt-get update

sudo apt-get install ap-hotspot

sudo ap-hotspot configure This step will check the network and wifi interface of Ubuntu, and after confirmation, you will be prompted to configure the hotspot, enter the SSID and password and so on.

sudo ap-hotspot start

Well, the Android phone was successfully recognized and connected.