Assume that i want to block web-cam for Msn messenger
And i know its port what Chain should i use !
What does Forward and Input and Output Mean !
Ususally i duplicate the rule for Input and Forward and notice which one Count!
RTFM!
There are three predefined chains, which cannot be deleted:
input - used to process packets entering the router through one of the interfaces with the destination IP address which is one of the router’s addresses. Packets passing through the router are not processed against the rules of the input chain
forward - used to process packets passing through the router
output - used to process packets originated from the router and leaving it through one of the interfaces. Packets passing through the router are not processed against the rules of the output chain
Thanks You .