I'm by no means experienced with system administration. I have a Linode vm mostly for the fun of it, hosting a webserver (nginx -> nodejs) and a Minecraft server I share with some friends.
I regularly (1+/day) get e-mails notifying me about system boots, e.g:
Lassie initiated boot - Completed Tue, 29 Jan 2013 09:52:17 GMT
I've no idea why the machine is rebooting. Even more ignorant on my part, I don't know how to debug this issue. I've read
/var/log/syslog around the reported boot times, and I can see the usual boot sequence dump, but nothing unusual prior to that.
How can I tackle the problem, and figure out what's going on?