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Full Discussion: power off during weekend
Operating Systems Linux power off during weekend Post 302420067 by Corona688 on Monday 10th of May 2010 12:53:24 PM
Old 05-10-2010
Quote:
Originally Posted by @dagio
If i do this using crontab can i also power on the servers on Monday morning (for example) using crontab?
Generally, computers don't do anything while they're off.

wake-on-lan is possible but that'd mean another computer on the same local network sticking around to send it the wake-up signal later. Sometimes you can find special timed wake-up options in the BIOS itself though.
 

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WAKE(8) 						    BSD System Manager's Manual 						   WAKE(8)

NAME
wake -- send Wake on LAN frames to hosts on a local Ethernet network SYNOPSIS
wake [interface] lladdr [lladdr ...] DESCRIPTION
The wake program is used to send Wake on LAN (WoL) frames over a local Ethernet network to one or more hosts using their link layer (hard- ware) addresses. WoL functionality is generally enabled in a machine's BIOS and can be used to power on machines from a remote system with- out having physical access to them. interface is an Ethernet interface of the local machine and is used to send the Wake on LAN frames over it. If there is only one Ethernet device available that is up and running, then the interface argument can be omitted. lladdr is the link layer address of the remote machine. This can be specified as the actual hardware address (six hexadecimal numbers separated by colons) or as a hostname entry in /etc/ethers. wake accepts multiple lladdr addresses. Link layer addresses can be determined and set using ifconfig(8). FILES
/etc/ethers Ethernet host name data base. SEE ALSO
ethers(5), ifconfig(8) AUTHORS
wake was written by Marc Balmer <marc@msys.ch>. BSD
December 27, 2009 BSD
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