Hi folks,
My *buntu server runs a mail server. At 00:00 on some days, it complains that it can't reach the spam analyser or the virus analyser, despite the fact that they're still running and always have been, as far as I can tell.
Other than stopping up to see what's running at midnight, is there a way of monitoring what's running at a particular time. I know you can see what's slowing things down at boot time using "system-analyze blame", or using pybootchartgui. Is there a way to do something like this around midnight?
Also, of the top of your collective heads, can you think of any services update or hog processor at 00:00.
How are scheduled tasks started, so I can have a root around and see what's happening?
I can think of various ways. 1) A program (daemon) can constantly run, and may update at a specific time. 2) crontab 3) "at" perhaps. Any others?
Any comments or advice appreciated.
Steve