To start, stop, or restart a network service on a Unix or Linux system, you can use the service command.
To start a service, you can use the service command followed by the name of the service and the start argument. For example, to start the ssh service, you can use the following command:
service ssh start
To stop a service, you can use the service command followed by the name of the service and the stop argument. For example, to stop the ssh service, you can use the following command:
service ssh stop
To restart a service, you can use the service command followed by the name of the service and the restart argument. For example, to restart the ssh service, you can use the following command:
service ssh restart
It is important to note that the service command is not available on all Unix or Linux systems, and the syntax and arguments may vary depending on the specific system you are using.
For more information about the service command and its usage, you can consult the documentation for your specific Unix or Linux system. You can also use the systemctl command to manage services on some systems.