Sadly, for you, Mohammed, This is not a LARTC question. I would recommend the netfilter list, to which you have cross posted. : I have two networks running Red Hat Linux 7.3 on both sites server, now : I want to connect each other. If you want to connect the two networks, you can connect them with a VPN (CIPE, vtun, IPSec). : When I send any request from pc-2 to Server2 on port 2000 like this : http://202.192.182.2:2000 then server2 forward this request to its : internal network pc-3 which is running windows2000 with IIS. : : and same on other hand, when pc4 send any request to Server1 on port : 2000 like this http://202.192.182.1:2000 then server1 forward this : request to its internal network pc-1 which is running windows2000 with : IIS. If you really wish to publish these services publicly, you'll want to use DNAT: http://iptables-tutorial.frozentux.net/iptables-tutorial.html#DNATTARGET http://linux-ip.net/html/nat-dnat.html <snip> Good luck, -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@xxxxxxxxxxxxxx
