Question

routes.Add("DomainRoute", new DomainRoute(
    "{controller}.localhost:5096",                            
    "{action}/{id}",                                        
    new { controller = "Home", action = "Index", id = "" }  
));

without iis all good

with iis I have

Bad Request – Invalid Hostname

HTTP Error 400. The request hostname is invalid.

http://develop.localhost:5096/

Answer 1

My guess is that you need to change your hosts file (C:\Windows\System32\drivers\etc\hosts) to route that subdomain to 127.0.0.1. By the way, the hosts file does not accept wildcards, so you will need to list each of your subdomains. This should not be a problem when running outside localhost since you will be able to use wildcards.

I’ve done something similar, but in my case I’ve used fixed subdomain names, but I think it may help you.