Switch of the accesspoint? (WRAP)
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 You can add custom cronjobs to do so. Go to diagnostics, edit file "/etc/crontab" and add an ifconfig up or down at the desired times for this interface. I guess you'll have to run the wireless config shellscript that the webgui creates after bringing up the interface again too. You'll find it in /tmp/. Depending on the name of the interface it has different names but you should easily find it by checking the content of this folder (don't have a system as reference available right now to look it up exactly). 
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 Thank you very much for the fast answer!!! 
 8)Leinad 
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 If you get this to work please share your cronjob settings. Others might be interested in this as well. 
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 That is exactly what I was looking for in the forum. I just need the wireless card occasionally, so I would like to switch the wireless card off during the other time. I think I can extract the necesary commands out of the cron job. 
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 Just looked up the script that brings up the wireless interface (located in /tmp): ath0_setup.sh (for my ath0 interface, name depends on the used nic and the amount of this type you have in your box) 
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 It would be nice if there was a switch in the webGUI to power off the wireless card (not just disable), so there is no radiation anymore. 
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 if it is disabeled then its powerd off so then it will not send any more so there is no radiation anymore 
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 if it is disabeled then its powerd off so then it will not send any more so there is no radiation anymore Are you shure about that, I think it doesn't power off the card. I'm quite sensitive on radiation… 
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 It does, there is not even a channel or frequency configured if the device is disabled. Check with http://www.netstumbler.com/downloads/ if you are paranoid ;) 
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 If you do a "sysctl -a |grep rfsilent" and "sysctl -a |grep rfkill" you will find two sysctl strings that can possibly disable your card as well. If you are lucky your card supports this. Try to change the sysctls from 1 to 0 and 0 to 1 to enable/disable the card. If you can get this to work then use that sysctl line in a cron job to enable/disable the radio part of your card.