On Wed, 2013-08-28 at 21:49 +0200, Miguel González wrote:
> Dear all,
>
> I´m testing a server and try to simulate a server in production. We
> have a SSL certificate and I have configured the test server with the
> same servername as it is in production. To access it, I change the hosts
> file in my laptop to reach the test server.
>
> However, the Java application running in the server tries to access
> some local web content. I have changed the hosts file and some
> applications (ping, wget) they get the local IP address. However
> nslookup and maybe our Java application (I didn´t have the programmer
> available to debug it) are getting the production server IP.
>
> So, how can I redirect for instance 443 traffic to a specific IP to
> the local IP address of the local server? I have tried this:
>
> iptables -t nat -A PREROUTING -d XXX.XXX.XXX.XXX -p tcp --dport 80
> -j DNAT --to YYY.YYY.YYY.YYY
>
> XXX.XXX.XXX.XXX - IP of production server
>
> YYY.YYY.YYY.YYY - local IP of the test server
>
> Thanks
>
> Miguel
You have the prerouting but you have to forward it as well.
This allows a connection on the Internet to make a connection to a
internal machine on my local network.
Router machine's local network ip 10.0.0.1 on eth1.
10.0.0.5 internal machine.
iptables -A FORWARD -p tcp -i ppp0 -o eth1 -d 10.0.0.5 --dport 1234 -j
ACCEPT
iptables -t nat -A PREROUTING -p tcp -i ppp0 --dport 1234 -j DNAT
--to-destination 10.0.0.5:1234
ip and ports changed to protect the guilty :)
Gary.
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