IP Forwarding -- !! help !!

I wish to know something about IP Forwarding. Say I have to change IP Addresses in a cpanel server. Because it will be moved to another datacenter, a new IP addresses onto DNS is required.

Well, many people do this way
1) Change DNS few days before it is moved
2) Move the server
3) Change the IP addresses
4) wait DNS to resolve the new IP addresses (some might take longer)

Is there a way to decrease the downtime above?

I have a spare server at the moment so can act as anything in the old rack. Can it be done by having IP Forwarding..say

IP 1.2.3.4 (old rack) enters the server then forward it so 2.3.4.5 (new rack)? By not configuring the DNS?

Let me know how, iptables or anything.

Best Regards

 

 

 

 

Top