How to start with wireless network on Debian squeeze

How to automatically keep an active network always on desktop, && use wireless network

sudo apt-get install network-manager
sudo apt-get install wicd
sudo apt-get install firmware-iwlwifi

Option 1:
sudo apt-get install network-manager-gnome

To use network-manager-gnome in Xfce (or Gnome) you need to have the applet running in the sytem tray.
In Gnome this is automatic but in Xfce you need to set it up initially. Fortunately this is very easy:

Alt + F2 to run a command:  nm-applet –sm-disable

Network manager is used for keeping an active network always for desktop.
Wireless network is disabled by default, rith click on the desktop network icon, choose “Enable Wireless”, it shall works.

Note for Chinese readers: 默认无线是关闭的，右键点击桌面工具栏上的网络连接图标，选中”Enable Wireless”，即可使用无线网络.

Option 2:

For WICD network manager, network connected and disconnected notification is disabled by default, you can enable the option in Preference settings.

If you haven’t input wireless interface, WICD could not find network by default, just input wlan0 in your wireless interface in WICD Preference settings.

Then click Wicd network manager -> Network -> Find a hidden network, wicd shall find wireless networks.

Note for Chinese readers: 网络的连接和中断通知默认是关闭的，可以在Preferences里面勾上 Notification.

如果没有在Preferences里面输入wireless interface，WICD默认是找不到无线网络的，通常输入wlan0即可找到无线网络。

点击无线网络的属性，配置好后，点击connect即可连接到无线。