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Feature #9078

Updated by Jim Pingle over 4 years ago

explicit-exit-notify looks like it can greatly speed up recovery time on OpenVPN process restarts and potentially HA server installations. 

 From https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage 

 <pre> 
        --explicit-exit-notify [n] 
               
     In UDP client mode or point-to-point mode, send server/peer an 
               exit notification if tunnel is restarted or OpenVPN process is 
               exited.    In client mode, on exit/restart, this option will tell 
               the server to immediately close its client instance object 
               rather than waiting for a timeout.    The n parameter (default=1) 
               controls the maximum number of attempts that the client will try 
               to resend the exit notification message. 

               

     In UDP server mode, send RESTART control channel command to 
               connected clients. The n parameter (default=1) controls client 
               behavior. With n = 1 client will attempt to reconnect to the 
               same server, with n = 2 client will advance to the next server. 

               

     OpenVPN will not send any exit notifications unless this option 
               is enabled. 
 </pre> 

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