On Thursday, August 26th, 2021 at 1:10 AM, Hendrik Boom <hendrik@???> wrote:
> For the past few months my home server (running an ascii installation
> physically moved from another computer) has been suddenly stopping all
> processing about once a month. apparently at random. It seems to stop
> instantly, leaving power on and becoming completely responsive to ping,
> existing ssh connexions and use of the physical keyboard.
> The system log, after a reboot, shows nothing unusual except of course
> that there are no log entries for a shut-down.

> Can anyone provide ideas about tracking this down?
> It could of course be a random rare intermittent hardware error.

> -- hendrik

Sounds like a Kernel panic, which can be tricky to resolve.
My first step would be to enable the Magic SysReq Key and

wait for a system freeze to see if it can reveal anything.

https://en.wikipedia.org/wiki/Magic_SysRq_key