I have a root server with one interface and one static IP.
How would the command (iptables) look to forward one port from the extranl interface (eth0) to another port on localhost:
xxx.xxx.xxx.xxx:25 ---> 127.0.0.1:26
I thought this would work:
$IPT -A tcp_inbound -p TCP -i eth0 --dport 25 -j FORWARD -d 127.0.0.1 --to-ports 26
but it isn't (where $IPT contains the full path to iptables).
My main problem is: I run a Domino Server on this box and I don'T want him to use 25 since postfix is running there to send me notifications from my cron scripts and so on. So I switched domino's port to 26 and now I want to forward incoming connections on port 25 to localhost port 26 ;(
How should the line look like ? To be honest, I created that script with an iptables script generator and added this line on my own. But I canÄt find the error here (The parameters like --dport --to-port and -d are from the man page)