iptables - URL Redirect to IP on LAN

wOk here is what I need to do:

Listen on various ports and route to LAN IP addresses based on url and port.

So I have a number of domain names assigned to the same IP address and I need to redirect based on url–

Server1.domain.com:5902 --> 192.168.0.100:5902
Server2.domain.com:5902 --> 192.168.0.101:5902

Server1.domain.com:23 --> 192.168.0.110:23
Server2.domain.com:23 --> 192.168.0.111:23

I have an IIS server that does this kind of thing fine for http stuff but other ports are bupkis.

Can this be done sith squid or iptables or ????