Debian\Linux
Click on ‘Show Applications’ (which is the equivalent of the ‘Start’ menu in Windows) then type ‘Settings’ and click on the ‘Settings’ image.
In the left hand menu click on ‘Network’ and in the ‘Wired’ section that appears in the main window you will see a ‘cog’ button. Click on this to see information about your wired network.
There are pages (with clickable names along the top of the window) for Details, Identity, IPv4, IPv6 and Security.