how to change categories

[SANTO007]

I have sucessfully installed nodebb.how to change nodebb's category.
for
example:- domain.com/category
to
category.domain.com
I am not referring to external domain in the category.In simple words i want sub-domain forums.Is it possible

[a_5mith]

I attempted this last week. It's easier to redirect them. So category.forum.com redirects to forum.com/category/2

I pasted my configuration in another topic. Feel free to look through my topics from the last 2 weeks for one about subdomains