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Edit File: dm-event.socket
[Unit] Description=Device-mapper event daemon FIFOs Documentation=man:dmeventd(8) DefaultDependencies=no [Socket] ListenFIFO=/run/dmeventd-server ListenFIFO=/run/dmeventd-client SocketMode=0600 RemoveOnStop=true [Install] WantedBy=sockets.target