Back around 2004 there was a technology called VRRP then OpenBSD got a similar thing called CARP - a quick google suggests these still exist but i never see men

Back around 2004 there was a technology called VRRP then OpenBSD got a similar thing called CARP - a quick google suggests these still exist but i never see mention of them in my filter bubble for some reason. I was obsessed with making an instant failover cluster. I never managed to get it working exactly how i wanted and it relied on two old UPSs with dead batteries to operate as STONITH devices (they had well supported rs232 interfaces). I sometimes think about investigating that idea again but maybe with raspberry pis and cheap iot plugs.