NetworkManager is the ideal solution for a mobile workstation. With NetworkManager, you do not need to worry about configuring network interfaces and switching between networks when you are moving. NetworkManager can automatically connect to known WLAN networks. If you have two or more connection possibilities, it can connect to the faster one.
|NetworkManager and SCPM|
Do not use NetworkManager together with SCPM when SCPM profiles also change network settings. If you want to use SCPM and NetworkManager at the same time, disable the network resource in SCPM configuration.
NetworkManager is not a suitable solution in the following cases:
Your computer has a static address.
You want to use more than one provider for dial-up for one interface.
You want to use WPA-EAP encryption for your WLAN connection.
Your computer is a router for your network.
Your computer provides network services for other computers in your network, for example, it is a DHCP or DNS server.
To start NetworkManager, enable NetworkManager in the YaST module of your network device. Because NetworkManager does not need standard network configuration, the YaST configuration becomes inactive. NetworkManager automatically chooses the best network available, but it can automatically connect only to a known network. For the first connection to a network, use the NetworkManager applet. If the network requires additional information, like its name, password or encryption key, NetworkManager prompts for it.
Both KDE and GNOME have their own applets for NetworkManager. An appropriate applet should start automatically with the desktop environment. The applet is then shown as an icon in the system tray. Functions of both applets are similar, but their interfaces are different. They can also be used in other graphical environments with standard system tray support.
KNetworkManager is a KDE applet for controlling NetworkManager. If it is not running start it with the command knetworkmanager. When it is running, a blue Earth icon is shown in the system tray. Right-clicking the icon opens the KNetworkManager menu with various commands for managing network connections.
The menu contains available network connections, both wired and wireless devices. If you hold the mouse cursor over them, details are displayed. The currently used connection is checked in the menu. The signal strength of wireless networks is also shown in the menu. Encrypted wireless networks are marked with a blue lock icon. To connect to an encrypted network, choose it from the menu. In the dialog that opens, choose the type ofthe network uses and enter the appropriate or .
To connect to a network that does not broadcast its service set identifier (ESSID) and therefore cannot be detected automatically, choose. In the dialog that opens, enter the ESSID and set encryption parameters if necessary.
To access dial-up connections, choose. When dial-up connections have already been defined, start the connection by clicking the connection to use. opens YaST where you can define a new dial-up connection.
To disable any active network connection, choose+ from the KNetworkManager menu. To reenable the connection, choose + . To disable wireless network connections, choose + from the KNetworkManager menu. To reenable wireless connections, choose + . Enabling networking takes a few seconds.
GNOME also has its own applet for NetworkManager. If it is not running, start it with the command nm-applet. When it is running, an icon is shown in the system tray. The appearance of the icon depends on state of the network connection. If you are not sure what the icon means, hold the mouse cursor over it until an explanation appears.
Left-click the applet icon to show a menu with available networks. The currently used connection is checked in the menu. The signal strength of wireless networks is also shown in the menu. Encrypted wireless networks are marked with a shield icon. To connect to an encrypted network, choose it from the menu. In the dialog that opens, choose the type ofthe network uses and enter the appropriate or .
To connect to a network that does not broadcast its service set identifier (ESSID) and therefore cannot be detected automatically, left-click the icon and choose. In the dialog that opens, enter the ESSID and set encryption parameters if necessary.
To disable networking, right-click the applet icon and uncheck. To disable wireless networking, right-click the applet icon and uncheck .
To get information about the current connection (including interface used, IP address, and hardware address), right-click the applet icon and choosefrom the menu.
More information about NetworkManager and D-BUS can be found on the following Web sites and directories: