[Unit] [Socket] ListenStream= ListenDatagram= ListenSequentialPacket= ListenFIFO= ListenSpecial= ListenNetlink= ListenMessageQueue= ListenUSBFunction= SocketProtocol= BindIPv6Only= Backlog= BindToDevice= SocketUser= SocketGroup= SocketMode= DirectoryMode= Accept= Writable= FlushPending= MaxConnections= MaxConnectionsPerSource= KeepAlive= KeepAliveTimeSec= KeepAliveIntervalSec= KeepAliveProbes= NoDelay= Priority= DeferAcceptSec= ReceiveBuffer= SendBuffer= IPTOS= IPTTL= Mark= ReusePort= SmackLabel= SmackLabelIPIn= SmackLabelIPOut= SELinuxContextFromNet= PipeSize= MessageQueueMaxMessages= MessageQueueMessageSize= FreeBind= Transparent= Broadcast= PassCredentials= PassSecurity= PassPacketInfo= Timestamping= TCPCongestion= ExecStartPre= ExecStartPost= ExecStopPre= ExecStopPost= TimeoutSec= Service= RemoveOnStop= Symlinks= FileDescriptorName= TriggerLimitIntervalSec= TriggerLimitBurst= [Install]