WLAN

The best way to avoid falling into that trap is to configure your Raspberry Pi for remote access. Once you have that configured, however, you still need to know how to do tasks remotely that would previously be given by a GUI interface (like turning on the Wi-Fi). Today we’re going to walk you through the technical (but simple) way to remotely connect to your Pi and activate a Wi-Fi add-on dongle.

What You Need?

For this you’ll need these items:

• 1 Raspberry Pi unit with Raspbian installed (this technique should work on other distributions, but we’re using Raspbian)
• 1 Ethernet connection to Pi unit (necessary for activating the Wi-Fi functionality remotely)
• 1 Wi-Fi Dongle (we use this modelon all our Pi units with great success)
• If you don’t use this Wi-Fi dongle model, we strongly recommend researching the model you intend to purchase to see if it is well supported. To that end,the USB Wi-Fi adapter section of the RPi wiki is very helpful.
• In addition to the above items, you need to take a moment to check the configuration of the Wi-Fi node you intend to connect your Raspberry Pi unit to: you’ll need to make note of the SSID, password, and encryption type/method (the node is using WPA with TKIP shared-key encryption).

By: AbdulMohsen

Found on google