Hello to all,
I need to redirect some services to my ssh port.
my firewall has two interfaces and i want to redirect all traffic to port 22,
so i added this code to my firewall script
...initialisation code....
My_PORTS_TCP="22 ftp telnet squid socks kazaa back_or"
echo -n "TCP port "
for i in $My_PORTS_TCP;
do
echo -n "$i "
$IPT -t nat -A PREROUTING -p TCP -d $EXTNET --dport $i -j REDIRECT --to-ports 22
fi
done
but when i do tcpdump to port 22 i see no traffic at all, although i am doing ftp to my firewall !?!
questions:
1-Is the rule wrong ?
2-Is the tcpdump leastning in a raw socket before redirection ?
3-How can i confirm that redirection is functioning ?
please comment,
nassri
