Re: want to know reason for system restart.

[tk <tk@sawada-co.tk>]

 On Mon, 8 Jul 2013 13:07:17 +0500 
 Subject: want to know reason for system restart. 
 Muhammad Yousuf Khan <sirtcp@gmail.com> Wrote:

> i system has restarted during weekend for unknown reason and i want to know
> the cause of this restart. would you please help me to know how i can find
> this in log files.

At first,
You should confirm  /var/log/messages.

> in debian and ubuntu both.

Did plural machines reboot at the same time?
If so, There is a possibly of power supply system.

Thanks,
tk