Uno Engborg wrote:
stan skrev:
Uno Engborg wrote:
Rüdiger Pretzlaff skrev:
Am 12.07.2008 um 12:21 schrieb Uno Engborg:
For various reasons I would like to forward trafic to port 390 to
port 5432 on the same host. One would think this would be a
simple task for iptables but I have now tinkered with this for two
days, and I still fail to get it right.
I have also tried :
iptables -t nat -A PREROUTING -p tcp --dport 390 -j DNAT --to
192.168.0.5:5432
where 192.168.0.5 is the address of the host
Any ideas on how to do this?
From the man page it looks like you need a colon on the port for DNAT
(and no IP
as it will stay the same if not specified, just what you want).
iptables -t nat -A PREROUTING -p tcp --dport 390 -j DNAT
--to-destination :5432
I haven't tested, but it seems it should work.
Yes, removing the IP address was probably an improvemnet, but not
enough to make it work.
Regards
Uno Engborg
You should add some LOG rules so you can see what is happening to the
packet. They will show
you if the port is being altered.
If that doesn't work, could you post the output of iptables -n -L -v?
That way everyone can see
exactly what iptables is programmed to do.
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