Rodrigo Barbosa wrote:
Humm, that should be relatively simple:
iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j ACCEPT iptables -t nat -A PREROUTING -p tcp --destination-port 8000 -j DNAT --to-destination ${DESTINATION_SERVER}
iptables -A FORWARD -p tcp --destination-port 8000 -d ${DESTINATION_SERVER} -s ${SOURCE1} -j ACCEPT iptables -A FORWARD -p tcp --destination-port 8000 -d ${DESTINATION_SERVER} -s ${SOURCE2} -j ACCEPT iptables -A FORWARD -p tcp --destination-port 8000 -d ${DESTINATION_SERVER} -s ${SOURCE3} -j ACCEPT iptables -A FORWARD -p tcp --destination-port 8000 -d ${DESTINATION_SERVER} -s ${SOURCE4} -j ACCEPT iptables -A FORWARD -p tcp --destination-port 8000 -d ${DESTINATION_SERVER} -j REJECT --reject-with tcp-reset
Rodrigo, wouldn't the port filtering take place in the INPUT chain?
iptables -P INPUT DROP iptables -A INPUT -p tcp --destination-port 80 -j ACCEPT