Post #3111162
2026-06-05 03:02 UTC
In terms of why, all I really want is for the machine to have the same, consistent ip address. Since it’s one of my networks dns and dhcp servers, I want it always available with the same ip. It’s hard-wired but has wifi, so in theory if the eth connection or switch it’s attached to dies, the wifi connection can kick in and it can still serve the network if it still has the same ip address, otherwise the wifi connection is no benefit.
Since I didn’t know I could assign both connections the same ip address and still be functional, I originally setup a script that monitors network status and disables the wifi if eth is active and then re-enables the wifi if the eth connection drops. This works well on my two servers with one exception… my dvr scheduling/recording services don’t work properly when the wifi adapter is disabled. Not sure why but that’s how I stumbled on this setup with both active with the same ip and realized everything just seemed to work.¯\_(ツ)_/¯
Replies (1)
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@LordCrom@lemmy.world 2026-06-07 13:11
Best thing to do here is buy a Network interface card with 2 ports that support a floating IP address for HA. each interface can plug into a separate lan switch for HA. Last time I did this, broadcomm was a good choice. I would not run any core services on WiFi only. How many users ? How large a network? Could you offload dhcp/DNS to other devices to improve resiliency?