So I’m working on a server from home.

I do a cat /sys/class/net/eth0/operstate and it says unknown despite the interface being obviously up, since I’m SSH’ing into the box.

I try to explicitely set the interface up to force the status to say up with ip link set eth0 up. No joy, still unknown.

Hmm… maybe I should bring it down and back up.

So I do ip link set eth0 down and… I drive 15 miles to work to do the corresponding ip link set eth0 up

50 years using Unix and I’m still doing this… 😥

  • moonpiedumplings@programming.devEnglish
    3·
    13 days ago

    Use removedpit by Red Hat. It gives you a GUI to make networking changes*, and will check if the connection still works before making the change. If the connection doesn’t work (like the ip addresses changed), it will undo the change and then warn you. You can then either force the change through or leave it be.

    *via NetworkManager only.