Well that was annoying. About once a year my automation server, which also does DNS will just randomly drop the network connection, and it just did it now. Was in middle of watching a youtube video when my internet cut out.
I should probably move DNS over to a Raspberry PI, or maybe even two, with a failover setup. The automation server could easily be a Raspberry Pi too actually.
At some point I really need to setup a KVM console, since it would be interesting to see what the system is doing when this happens or to look at the dmsg log. There is an IPMI interface but it requires Java which is a pita to setup on Linux. KVM console would also make it easier to do OS upgrades or anything low level. Right now I need to haul the machine to my work bench to do anything like that. 10+ years I've had this server room and still never set that up lol.