/ONERROR

   /ONERROR={RECONNECT | TERMINATE}

   Specifies the action taken when the proxy server encounters an
   internal error. This usually occurs when the proxy server looses
   its connection to the X server.

   RECONNECT   Specifies that the proxy server should clean up
               its internal state information and await further
               requests. If the proxy server is a standalone server,
               this option also specifies that the proxy server
               should reconnect to the X server. For managed proxy
               servers with multiple connected X servers, the proxy
               server will try to reconnect each server connection
               when it fails.
   TERMINATE   Specifies that the proxy server should exit. For
               managed proxy servers with multiple connected X
               servers, the proxy server will terminate only if
               all X server connections fail.

   The default is /ONERROR=TERMINATE.