Power saving shutdown for Server

[Gavin McCullagh]

On Thu, 23 Aug 2007, Ian Moore wrote:

>  I entered the below under the appropriate headings in /etc/sudoers using 'visudo'
> 
>    User_Alias STAFF = bob, dave, jill
>    Cmnd_Alias HALT = /sbin/halt
>    STAFF ALL = HALT 
> 
>  Seems to work on my home edubuntu machine so I'll test it at work next week.

A lot of BIOSes have useful facilities for booting the machine back up in
the morning too:

1. Alarm -- set the machine to boot at certain date/times (some BIOSes are
   much better than others at this).

2. Wake-on-lan -- the machine boots if a specially crafted udp packet is
   broadcast on the local subnet.

Either might be useful to help you save power but cause minimal
inconvenience.  In some cases the alarm can be set from within linux, so
each evening, a script can set the next time it wishes to be woken up (ie
perhaps not on saturdays/sundays).

Gavin