linux-init-process-services-at-startup

chkconfig --list

this will show you what services are "on" at what run levels

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 /etc/inittab

The boot process uses these parameters to identify the default runlevel and the files that will be used 
by that runlevel. In this example, runlevel 4 is the default and the scripts that define runlevel 4 can be 
found in /etc/rc.d/rc.4.


0	Halt
1	Single-user mode
2	Basic multi-user mode (text)
5	Full (GUI based) multi-user mode
6	Reboot


FOR FUN: init 6

This will reboot the system.


Write a startup script and place it in /etc/init.d.
Then create a symbolic link to it from the appropriate runlevel directory 
(or runlevel file, if that's what your system uses).


/etc/rc.d/rc.local file. This script file is run once, 
before all other scripts have run but before the logon prompt appears.
e.g. modprobe -r uhcimodprobe usb-uhcieciadsl-startiptable -Fiptables -A 


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chkconfig --list
chkconfig servicename off		//will turn it off for the runlevel that you're on...
								//generally we only care about runlevel 2 for our servers










etc/rc.d/rc.sysinit

1	The