<div class="gmail_quote">On Sun, Apr 5, 2009 at 4:39 PM, Sharpe, Sam J <<a href="mailto:sam.sharpe%2Blists.redhat@gmail.com">sam.sharpe+lists.redhat@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> 2009/4/5 Timothy Murphy <<a href="mailto:gayleard@eircom.net">gayleard@eircom.net</a>>: <div class="im">> Thanks for the response. > > Firstly, I have "Wake on LAN" enabled in the BIOS. > > Secondly, rather to my surprise the ethernet light goes off > when I "Hibernate" (I should confess at this point > that I am running Centos-5.3 on this machine, > but thought that I was more likely to get a helpful response > on the Fedora list!) > but stays on when I shutdown. > > In neither case does ping or (attempted) ssh have any effect. > How exactly is one meant to "wake from LAN". </div>One uses Magic Packets. <a href="http://en.wikipedia.org/wiki/Wake-on-LAN" target="_blank">http://en.wikipedia.org/wiki/Wake-on-LAN</a> To do this, first install a wol client on another machine to broadcast the wakeup: # yum -y install wol Then read about the options: <a href="http://linux.die.net/man/1/wol" target="_blank">http://linux.die.net/man/1/wol</a> Then one wakes the target machine... </blockquote><div> All my Intel mobos with onboard network can be waked up (no need to install anything, but net-tools): sudo /sbin/ether-wake ip-addr (wakes computer with ip-addr) Then, in /etc/ethers, I have the mac addresses associated to IP addresses: # see man ethers for syntax # andromeda XX:XX:XX:XX:XX:XX ip-addr Never tried with suspend or hibernate. Only when the computer power is off. </div></div> -- Paulo Roma Cavalcanti LCG - UFRJ