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rhel 4 linux WOL wake on lan

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Operating Systems Linux rhel 4 linux WOL wake on lan
# 1  
Old 02-17-2009
rhel 4 linux WOL wake on lan
Hi guys,

Two boxes on the same .23 subnet 192.168.1.x
The box I wanted to shutdown and restart remotely
went down, but didn't come back up when I used ether-wake 00:11:22:etc:etc:
The sleeper has two nics, but only one with cable. I configured both nics to wake on lan using the g option.
The sleeper is an IBM 336

I thought I'd setup the remoteMachine, by using ethertool to set Wake-on to g, which is supposed to mean it'll repond to the MagicPacket.

The thing is, I wasn't able to get a monitor onto the sleeper, or a keyboard,
so I had to pull the power cable to get it backup. Not great you'll agree.

So, with the above information in mind, where would you start in order to figure out why my ether-wake isn't waking the sleeper?

I even modifed the sleepers /etc/init.d directory so that it contains an executable file called wol.sh, but as the sleeper didn't reboot, I'm not sure that even worked. Do I have to do something with chkconfig so that my ethtool tweak is persistent?

Many questions, any help, as always, is very much appreciated.

The reason I'm doing this:
We have an electricity bill we'd like to reduce.
Is using wake on lan a good idea, or something to be avoided.
I'm looking for the voice of experience, to help me stand on the shoulders of giants.
Last edited by Bloke; 02-18-2009 at 08:14 AM..
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LEARN ABOUT DEBIAN

pbuilder-uml.conf

pbuilder-uml.conf(5)						     pbuilder						      pbuilder-uml.conf(5)

NAME

       pbuilder-uml.conf - configuration file for user-mode-linux port of pbuilder

DESCRIPTION

       /etc/pbuilder/pbuilder-uml.conf contains default values used in pbuilder-user-mode-linux program invocation.

FORMAT

       MY_ETH0=tuntap,,,192.168.0.2
	      Configures ethernet setting used for booting linux.  See how rootstrap boots your system, and copy that.

	      Specify --eth0=slirp,12345,/usr/bin/slirp-fullbolt to use the slirp connection.

       UML_IP=192.168.0.3
	      IP address to use for guest OS.

	      This can be set to dhcp for obtaining IP address through DHCP.

       UML_NETMASK=255.255.255.0
	      Guest OS netmask

       UML_NETWORK=192.168.0.0
	      Guest OS network

       UML_BROADCAST=255.255.255.255
	      Guest OS broadcast

       UML_GATEWAY=192.168.0.1
	      Guest OS gateway

       PBUILDER_UML_IMAGE=${HOME}/uml-image
	      Guest OS file system image.

       UML_MOUNT_TMPFS=no
	      Whether to mount tmpfs inside the guest image.  This is probably mostly useless.

       BUILDPLACE=${HOME}/tmp/
	      The  location  which build will take place.  pbuilder-user-mode-linux will place temporary COW files to there.  The user running UML
	      needs to be able to access that directory.

       UML_MEM=128
	      The amount of memory allowed for UML.  Give more value to here.

       UML_HOSTNAME=uml-host
	      The hostname for the UML.

	      The hostname should be available in /etc/hosts so that hostname -f will be able to return the FQDN.

       UML_BUILDRESULT=/directory/of/build/result
	      The directory where build result of pbuilder-user-mode-linux is stored.

       ROOTSTRAP_IMAGESIZE=size-in-megabytes
	      The size, in MB, of the disk iamge to create. Defaults to 1000.

NOTES

       It is advised to set APTCACHEHARDLINK to no in ~/.pbuilderrc.  see pbuilderrc(5) for details.

AUTHOR

       Initial coding, and main maintenance is done by Junichi Uekawa <dancer@debian.org>.

       The homepage is available at http://pbuilder.alioth.debian.org

FILES

       /etc/pbuilder/pbuilder-uml.conf, ${HOME}/.pbuilderrc

SEE ALSO

       /usr/share/doc/pbuilder/pbuilder-doc.html, pbuilder-user-mode-linux(1), pbuilder(8), pbuilderrc(5), pdebuild(1)

Debian								    2003 Jan 8						      pbuilder-uml.conf(5)