On boot, interfaces are admin-down *by default* until something explicitly brings them up. If you don't configure any network management software to bring eth0 up, then it'll be down.
On Thu, Dec 7, 2023, 22:52 lejeczek <pelj...@yahoo.co.uk> wrote: > Hi guys. > > Perhaps not strictly _systemd_ question but community here surely is > capable - a matter of me being lucky - how would you keep an Ethernet > link/port powered down? > I was thinking I'll try first _udev_ rules - given other tools/managers > are told to stay away from the link/port > Is there a better, best way to put such link/port down & keep it that way > - naturally, please steer clear of "unplug the cable" type of ideas. > > many thanks, L. >