URL Rewriting using folders instead of subdomains

Hi guys

Currently I see alot of ARR tutorials showing us how to route http://int1.domain.com and http://int2.domain.com to different servers.

My question is how do I go about setting up rules like below;

http://www.domain.com/int1 routes to int1.server1.local

http://www.domain.com/int2 routes to int2.server2.local

Please advise

Thanks in advance.