tested and works on: Linux laptop 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt20-1+deb8u2 (2016-01-02) i686 GNU/Linux

it is a little confusing… but you can set the default wired or wireless connection profile that the machine should chose like that:

1. you start the network connection manager

nm-connection-editor

this might not be installed by default.

apt-get update;
# install network management framework (daemon and userspace tools)
apt-get install network-manager;
# install network management framework (GNOME frontend)
apt-get install network-manager-gnome;

2. iterate over all wired connections by selecting the first, click on edit and uncheck the „Automatically connect to this network when it is available“ checkbox, except for the one that you want to be the default profile.

gnome3 network management editor nm-connection-editor

 

when you unplug and replug the LAN cable it should automatically chose the right profile…

gnome3 dropdown network profiles

i gonna restart and test. WORKS 🙂

as you can see: with the nm-connection-editor you can also use the amazing networking capabilities of linux and make your laptop SHARE it’s WIRELESS connection to a e.g. Desktop-PC (without Wireless) for connecting to the internet.

Linux Gnome3 Debian how to share Wireless connection via LAN

Which works absolutely like a charm.

GOOD WORK GUYS 🙂

KEEP SOFTWARE QUALITY HIGH PLEASE, AND SIMPLIFY WHATEVER CAN BE MADE MORE SIMPLE 🙂

AND NOTHING WILL STOP LINUX FROM SURPASSING WINDOWS AND OSX. (you can CLEARLY see how Apple stopped giving a damn about software quality and loses control over it’s many devices that it wants to sell… OpenSource, FreeSoftware, GPL, LINUX is definitely the way to take computing into the future. It is an art a way of life a culture a lifestyle… that just makes sense.)

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