Could be hardcoded in your java app, by hostname or ip? Just open your java (its a zip renamed) and see file contents (some of files inside, are text plain). Also, you can find a debuger Diego Sanchez Sent from my mobile -----Original Message----- From: Miguel González <miguel_3_gonzalez@xxxxxxxx> Sender: centos-bounces@xxxxxxxxxx Date: Wed, 28 Aug 2013 21:49:31 To: <centos@xxxxxxxxxx> Reply-To: CentOS mailing list <centos@xxxxxxxxxx> Subject: redirecting web requests from localhost 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 This message and any attachments are intended for the use of the addressee or addressees only. The unauthorised disclosure, use, dissemination or copying (either in whole or in part) of its content is not permitted. If you received this message in error, please notify the sender and delete it from your system. Emails can be altered and their integrity cannot be guaranteed by the sender. Please consider the environment before printing this email. _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos