Some installed software uses configuration files and provides some services. Service software may need to be managed, i.e. started, stopped, restarted and reloaded. Such software includes:
Secure Shell (SSH)
Apache Web Services
Cron (Routines that run on an automatic timer)
Network Services
UFW Software Firewalls
Hard Drive Mounting Routines
among others
When a service needs to be started for the first time or started after being stopped, use the command:
When configurations for service have been changed while the service is running and the service needs to be restarted in order to utilized the new configurations, use the command:
When a service needs to be stopped, use the command:
When a service has been stopped and the configurations have been changed while the services was stopped- the configurations must be reloaded, use the command: