I've a couple of sites configured under a sub-domain and all appears to work well (www.dx1.main.co.uk, www.dx2.main.co.uk)
Now we require a site to render from a sub-directory of the main (none-DXA) website (www.main.co.uk/dxa-collection/dx3, www.main.co.uk/dxa-collection/dx4) (and in the future possibly www.main.co.uk/dx5).
So within IIS we have the dxa-collection site running as an application underneath a separate site which enables us to use load balancing correctly.
All configured OK is IIS (it seems) but noted that
- assets such as CSS files, JS file and images are loaded from the root, ie: www.main.co.uk/BinaryData rather than the correct location which is www.main.co.uk/dxa-collection/dxa?/BinaryData
- the top level navigation is using the wrong directory as well, in this case www.main.co.uk/dxa-collection rather than www.main.co.uk/dxa-collection/dxa4
Using 2013 SP1 HR1, DXA 1. will post excerpts from web.config, cd_storage and cd-link as soon as I get access.