root@vlicense:~# systemctl start aei-mathlm.service 
root@vlicense:~# systemctl status aei-mathlm.service 
? aei-mathlm.service - Mathematica License Manager v11.3
   Loaded: loaded (/etc/systemd/system/aei-mathlm.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Mon 2018-08-06 15:32:01 CEST; 3s ago
  Process: 1101 ExecStart=/opt/aei/apps/licenses/Mathematica/v11.3/mathlm -timeout 24 -loglevel 4 -logfile /var/log/licenses/mathematica_11.3.log (code=exited, status=0/SUCCESS)
 Main PID: 1102 (code=exited, status=0/SUCCESS)

Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Changed start -> running
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Job aei-mathlm.service/start finished, result=done
Aug 06 15:32:01 vlicense systemd[1]: Started Mathematica License Manager v11.3.
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Failed to send unit change signal for aei-mathlm.service: Connection reset by peer
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Child 1102 belongs to aei-mathlm.service
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Main process exited, code=exited, status=0/SUCCESS
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Changed running -> stop-sigterm
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Child 1103 belongs to aei-mathlm.service
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: cgroup is empty
Aug 06 15:32:01 vlicense systemd[1]: aei-mathlm.service: Changed stop-sigterm -> dead
root@vlicense:~# 
root@vlicense:~# 
root@vlicense:~# systemctl enable aei-mathlm.service 
root@vlicense:~# date
Mon Aug  6 15:32:18 CEST 2018
root@vlicense:~# systemctl start aei-mathlm.service 
root@vlicense:~# systemctl status aei-mathlm.service 
? aei-mathlm.service - Mathematica License Manager v11.3
   Loaded: loaded (/etc/systemd/system/aei-mathlm.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2018-08-06 15:32:35 CEST; 3s ago
  Process: 1123 ExecStart=/opt/aei/apps/licenses/Mathematica/v11.3/mathlm -timeout 24 -loglevel 4 -logfile /var/log/licenses/mathematica_11.3.log (code=exited, status=0/SUCCESS)
 Main PID: 1125 (mathlm)
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/aei-mathlm.service
           ??1125 /opt/aei/apps/licenses/Mathematica/v11.3/mathlm -timeout 24 -loglevel 4 -logfile /var/log/licenses/mathematica_11.3.log

Aug 06 15:32:35 vlicense mathlm[1123]: Online help is available at
Aug 06 15:32:35 vlicense mathlm[1123]: http://reference.wolfram.com/network
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: User lookup succeeded: uid=0 gid=0
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Child 1123 belongs to aei-mathlm.service
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Control process exited, code=exited status=0
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Got final SIGCHLD for state start.
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Main PID guessed: 1125
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Changed start -> running
Aug 06 15:32:35 vlicense systemd[1]: aei-mathlm.service: Job aei-mathlm.service/start finished, result=done
Aug 06 15:32:35 vlicense systemd[1]: Started Mathematica License Manager v11.3.
root@vlicense:~# systemctl stop aei-mathlm.service 
root@vlicense:~# systemctl start aei-mathlm.service 
root@vlicense:~# systemctl status aei-mathlm.service 
? aei-mathlm.service - Mathematica License Manager v11.3
   Loaded: loaded (/etc/systemd/system/aei-mathlm.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Mon 2018-08-06 15:33:30 CEST; 3s ago
  Process: 1135 ExecStart=/opt/aei/apps/licenses/Mathematica/v11.3/mathlm -timeout 24 -loglevel 4 -logfile /var/log/licenses/mathematica_11.3.log (code=exited, status=0/SUCCESS)
 Main PID: 1136 (code=exited, status=0/SUCCESS)

Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Changed start -> running
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Job aei-mathlm.service/start finished, result=done
Aug 06 15:33:30 vlicense systemd[1]: Started Mathematica License Manager v11.3.
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Failed to send unit change signal for aei-mathlm.service: Connection reset by peer
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Child 1136 belongs to aei-mathlm.service
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Main process exited, code=exited, status=0/SUCCESS
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Changed running -> stop-sigterm
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Child 1137 belongs to aei-mathlm.service
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: cgroup is empty
Aug 06 15:33:30 vlicense systemd[1]: aei-mathlm.service: Changed stop-sigterm -> dead