Vivek Mangal wrote:
hello all, Can you help me to understand iptables Problem in below line iptables -A OUTPUT -p udp -o eth0 --dport 53 --sport 1024:65535 -j ACCEPT iptables -A INPUT -p udp -i eth0 --sport 53 --dport 1024:65535 -j ACCEPT I have confeusion that in first line Destination Port is 53 and Source Port 1024 to 65535 means any request come from 1024 to 65535 ports goes to 53 port. And in second line Destination Port is 1024 to 65535 and Source Port 53 means any request come from 53 port goes to 1024 to 65535 ports. it open all 1024 to 65535 and 53 ports then what the use of Iptable ? Please help me........ Vivek Mangal
you can disregard the INPUT line and put INPUT with ESTABLISHED, RELATED instead.
something like iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT Budi Febrianto www.indomino.net/blog -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
