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How to enable and use Wake on LAN this article I will describe how to enable Wake-on-LAN (WOL) and how to use it to start-up a system remotely. In order to use Wake-on-LAN your systems hardware and network driver needs to actually support this technology. You will also need to know the MAC address of the systems ethernet card.
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How to install and configure NetworkManager and network-manager-applet on Arch Linux with Gnome3

In this article I will describe how to make networkmanager and the network-manager-applet (aka nm-applet) work on Arch Linux with GNOME3. Of course there are other networking-tools available, however I prefer the use of networkmanager and network-manager-applet, because they integrate them selves very well into GNOME3.

Please notice that some parts of this how to were taken from Arch-Wiki-Networkmanager and Arch-Wiki-Beginners-Guide and I highly recommend reading those two articles.

0. Preparations
1. Installation
2. Configuration
3. Wireless troubleshooting
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