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My Mac took Nyquil
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soup4you2
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Post Posted: Thu Feb 19, 2004 8:28 am   Post subject: My Mac took Nyquil Reply with quote Back to top  
Ok one of the great things i've discovered about macs is that the power management actually works.. and returns from sleep..

Now using the wakeup on lan technology built into it is also great for when i need to ssh in or something.. took me a bit to figure out how to wake it up.. i was origionaly under the impression that i could send any type of network packet and it would wake up.. boy was i wrong...

The 'magic packet' consists of 0xFF 6 times followed by 16 times the hardware address of the NIC (MAC Address). Sent through the broadcast address. This sequence can be encapsulated in any kind of packet.

After learning how the magic packet works i was able to get this puppie to return it to the living. However say i launch a Irc session it will go back to sleep.. I'm assuming the system is just checking for activity in the GUI it's self. Is there a way other than disabeling the energy saver to allow it to stay on while a user is ssh'd in?

I imaging i could write up a script to send out a magic packet every 30 min while ssh'd in and break once done.. but i should not have to do that. any suggestions?

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Webster
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Post Posted: Thu Feb 19, 2004 11:17 am   Post subject: Reply with quote Back to top  
Power management that works? Oooh....

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tecgod13
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Post Posted: Thu Feb 19, 2004 11:51 pm   Post subject: Reply with quote Back to top  
Not that I know anything about macs, or scripts, but could you write a script that would move the mouse every so often?
Or a sshd login script that disables or changes the power features while logged in, then reenables them when you log out?

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hohlecow
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Post Posted: Fri Feb 20, 2004 6:48 am   Post subject: Reply with quote Back to top  
i haven't played with it at all, but in System Preferences->Energy Saver in the Options tab there is a check box for Wake for Ethernet network administrator access.

does that just mean wake on WOL, or will it actually wake on telnet?

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soup4you2
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Post Posted: Fri Feb 20, 2004 7:50 am   Post subject: Reply with quote Back to top  
hohlecow wrote:
i haven't played with it at all, but in System Preferences->Energy Saver in the Options tab there is a check box for Wake for Ethernet network administrator access.

does that just mean wake on WOL, or will it actually wake on telnet?


Thanks the wakeup on lan.. only wakes up when you send a magic packet. i believe the remote desktop sends one by default.. i'm digging around howto turn sleep mode on and off in the console..

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