I have a machine with 3 visible ethernet ports. However, ifconfig is showing 7 interfaces.
I have connected LAN wire on visible ethernet port but don't know name of linux interface on which LAN wire got attached.
How can I check it?
How to find on which linux interface LAN wire is connected?
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You can use ethtool to let the NIC light blink, i.e.
ethtool -p eth0.More here: https://man7.org/linux/man-pages/man8/ethtool.8.html