Today I tried to access my development site from a VM and was unable to connect. Thanks to @vcsjones, I learned that you can edit My Documents > IISExpress > config > applicationhost.config. Look for the sites section:
<sites> <site name="MyApplication" id="0"> <bindings> <binding protocol="http" bindingInformation="*:2600:localhost" /> </bindings> </site> </sites>
duplicate the localhost line and replace “localhost” with the hostname you want to allow.
Thanks Dr. Jones.