Thanks to @a_5mith and @Peter-Zoltan-Keresztes

@a_5mith is this right git clone -b v0.5.x https://github.com/designcreateplay/NodeBB.git .

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

@SANTO007 Have you tried searching for that error message online? This may help you: http://superuser.com/questions/709515/command-not-found-when-using-sudo

@SANTOSH-KUMAR Your redis is out of date. Needs to be greater than v2.4

OK PROBLEM SOLVED