using two servers for one domain

[mattachu]

hi all!

i have two servers, one running apache 2 on ubuntu and one running apache 1 on mac os x.

both servers are behind a router/firewall that redirects all requests on port 80 to the ubuntu server. i only have one ip address, that's the router/firewall. my www.domain.com points to my ip address. so everything sent to http://www.domain.com on port 80 goes to the ubuntu box.

up until now that's been fine, as my web site is held on the ubuntu server. however, i now want to host some files on my mac on the web.

i've set up the mac so that http://mac/siteA gives me the files i want. now what i want to do is to get http://www.domain.com/siteA to show the files from my mac, rather than looking for siteA on the ubuntu web server.

is it possible to set up a virtual directory or similar on the ubuntu box so that requests for siteA will be automatically forwarded on to the mac? i'd prefer to keep the same domain if at all possible.

thanks for your help!