From: boite-a-spam@plouf.fr.eu.org   
      
   Hello,   
      
   Rick Jones a écrit :   
   >   
   > Now, for completeness, there is in the TCP standard the concept of a   
   > "keepalive probe" that TCP can be asked to emit after the connection   
   > has been idle for some length of time.>   
      
   IIRC, the minimum recommended delay for TCP keepalive is 2 hours. I'm   
   afraid this would not be very helpful in the OP's situation.   
      
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