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Old 07-02-2009
otheus's Avatar
otheus otheus is offline Forum Staff  
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Join Date: Feb 2007
Location: Innsbruck, Austria
Posts: 1,886
Quote:
ONE: This is to be achieved without using public key authentication; this is being avoided as a security measure. (Not negotiable) :-)
Then may I suggest that your supervisors invest in this technology

Seriously, create a listening daemon each server that responds only to a specific IP address, and if really necessary, a password string. Once the string has been received, issue the shutdown command. It's a 5 line perl program. No need to parallelize since the string is sent and your client script just goes to the next server.