Hello Administrador, Friday, December 06, 2002, Administrador de Red <admin@gecyt.cu> wrote: AdR> Dear friends thanks very Mouch a some friends that try AdR> help me, well I want to say you that a I continu with the AdR> problem the OE don't want to send and recived the email AdR> from mail server, I want to send the rules for iptables AdR> (Filtering and Nat) well i writing this rules and the file AdR> iptables configuration. AdR> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 25 -j DNAT --to 172.16.1.4:25 AdR> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 110 -j DNAT --to 172.16.1.4:110 AdR> iptables -t nat -A POSTROUTING -o eth0 -j SNAT 169.158.130.253 [] AdR> I need some help fast. please. very unfriendly people living here:( in my meaning, you are interested in client <-> 169.158.130.253:25 <-> 172.16.1.4:25 client <-> 169.158.130.253:110 <-> 172.16.1.4:110 and 169.158.130.253 is your linux host. am i correct? try this: ******************* #!/bin/bash IPTABLES=/sbin/iptables IF=eth0 echo "1" > /proc/sys/net/ipv4/ip_forward # uncomment two next lines, if you do not have any other rules #$IPTABLES -t nat -F #$IPTABLES -F $IPTABLES -t nat -A PREROUTING -p tcp -i $IF --dport 25 -j DNAT --to 172.16.1.4:25 $IPTABLES -t nat -A PREROUTING -p tcp -i $IF --dport 110 -j DNAT --to 172.16.1.4:110 $IPTABLES -A FORWARD -p tcp -i $IF -o $IF -d 169.158.130.253 --dport 25 -j ACCEPT $IPTABLES -A FORWARD -p tcp -i $IF -o $IF -d 169.158.130.253 --dport 110 -j ACCEPT $IPTABLES -t nat -A POSTROUTING -o $IF -j MASQUERADE ******************* then do telnet 169.158.130.253 25 from your client. Best wishes, Maxim mailto:mak@rtsnet.ru
