System V Init System

Service Centric
• Central idea of services
• Services stored in /etc/rc.d/init.d
Organised by Run Level
• Links to services in rc.< run level >.d directories
Services Start and Stop
• Scripts accept 'start' and 'stop' as parameter
• K??service stops services
• S??service starts service
Control done by single script
• /etc/rc.d/rc
• Ordered Execution
• ?? above is a number
Initialisation done by /etc/rc.d/rc.*