( advanced ) routing with iptables
I have the following problem. I host some sites on servers outside my country. Here we have 2 big ISPs. One of them is having problems with connections to another countries ( which includes my servers ) for a long time and doesn't seen to solve the problem in a near future.
The problem is that a lot of my clients use this ISP and i just can't simply ask them to change the ISP. My plans are to get a link with the other ISP ( the good one ), change my site's IP ( to the ones provided by the ISP ) and use a linux box to route the traffic.
Anyone who connects to my sites will actually connect to a server inside my country.
Is it possible to do this with iptables?
I really don't know how to search this on google ( can't find the right keywords ). Could someone send some links with docs about this?