Edit File: snmptrapd.service
[Unit] Description=Simple Network Management Protocol (SNMP) Trap Daemon. After=syslog.target network-online.target [Service] Type=notify Environment=OPTIONS="-Lsd" EnvironmentFile=-/etc/sysconfig/snmptrapd ExecStart=/usr/sbin/snmptrapd $OPTIONS -f ExecReload=/bin/kill -HUP $MAINPID [Install] WantedBy=multi-user.target