i have RHL5.2 as a proxy server for my lan. i have the rc.fw as follows
echo "Enabling Internet Gatewaying : "
/sbin/ipfwadm -F -f
/sbin/ipfwadm -F -p deny
/sbin/ipfwadm -F -a m -S 192.168.42.0/24 -D 0.0.0.0/0
/sbin/ipfwadm -F -l -n "
But it is that i want to restrit some of the machines on the lan from being given the TCP/IP packets so that they have no web access .
i tried to read the man pages for the "ipfwadm" but was unable to remove the machine from the proxy.