Difference bet'n rc.d and init.d
 

Friends ,
Suppose i make a script "Iptables" or others. Then when i want a situation where this script is always running during bootup the machie then i store this "Iptables" Script into "/etc/rc.d/init.d" location . But i want to know if i store that script into "/etc/rc.d" then is it working properly ?
i.e. , I want to know what is the basic difference between "rc.d" and "init.d"

thx...

rc.d, init.d
 

Everything in rc.d is a symlink to something in init.d.

Please specify your specific distribution as they don't all work the same way; e.g., Redhat, Debian, Slackware, etc.