Re: [CentOS] redirecting web requests from localhost

Miguel González wrote:

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

I'm not sure how to manage this on the test server, but I'm pretty sure this would work on the prod server.

echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A PREROUTING -p tcp --dport 443 -s YYY.YYY.YYY.YYY \ -m conntrack --ctstate NEW -j DNAT --to YYY.YYY.YYY.YYY:443 iptables -t nat -A PREROUTING -m conntrack --ctstate \ ESTABLISHED,RELATED -j ACCEPT iptables -A POSTROUTING -t nat -j MASQUERADE

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