If your installation of Advanced Server resides on version 7.x of RHEL and CentOS, you must use the systemctl command to control the Advanced Server service and supporting components.The systemctl command must be in your search path and must be invoked with superuser privileges. To use the command, open a command line, and enter:systemctl action service_nameaction specifies the action taken by the service command. Specify:
• start to start the service.
• stop to stop the service.
• restart to stop and then start the service.
• status to discover the current status of the service.service_name specifies the name of the service.