@ dgilmour
When I saying “resulting….” I mean WP auto-generate those folders, sorry for the unclear wording, and thanks for the tip.
@ Ipstenu
Thanks for the link, I’ll take a look.
I guessing there aren’t an easy way that can make WP to be user friendly with those folder names, ideally for me, if those folder can be named as the sub-domain, that will be great. eg- WP will generate a folder called “news” in blog.dir folder for the “news.ddd.com” sub-domain.