In addition to what Architect said above, feel free to have a gander at the Documentation category as this is the most pertinent if you want to look at / learn the admin side of managing a Discourse.
Our community category is for questions and discussions about all things people/community related rather than any developer or hosting issues, which sounds like it could be the right place for you.
Do you have any particular questions or issues in mind you’d like to raise? Or please feel free to browse the existing community topics and weigh in on any you find interesting.