Sometimes you may require sharing a wireless internet connection with a computer which has no Wi-Fi adapter. Doing so can become quite tricky as the computer without a Wi-Fi card cannot be connected to a wireless router. In this post we will provide you with a quick tip to explain the procedure to share a wireless internet connection from one Ubuntu system with a Wi-Fi card (e.g. Laptop) to another Ubuntu computer which has no Wi-Fi card (e.g. a desktop PC).
To get started, click on the connection icon from the system tray and select Edit Connections.
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Head over to the Wired tab, select Auto eth0 and click Edit.
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From the IPv4 Settings tab, select Share to other computers and click Apply. Make sure that the computer with the Wi-Fi connection is connected to the system with Wi-Fi internet using a LAN cable.
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This will share the internet connection from the system with the wireless card to the one with no Wi-Fi card. Although, it can be quite convenient to simply buy a Wi-Fi card for the other system to connect both computers via a wireless router or by sharing your wireless connection with the second Wi-Fi card, but if for some reason it is not possible (e.g. due to legacy hardware or no empty slot available for adding a Wi-Fi card), then you can use the above mentioned procedure to share your Wi-Fi internet connection with a system which may not have a Wi-Fi card installed.
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