In the case you need to restart (stop/start) any of the services which are available in SharePoint 2010, start out in Central Admin. then click on ‘System Settings’ and then ‘Manage Servers in the Farm’.

Click on the server you’d like to work with. Pick the service you need to restart, and under the action column, click ‘Stop’. Once it’s stopped, just click ‘Start’ and you’re done.