[ChrisOGwynne]

Is there a plugin that will totally close off my bbpress forum? If users are logged out they will only be able to access a login page/register page, and nothing more.

[Shmoo]

Only the forum or the entire website ?

https://wordpress.org/support/topic/only-allowing-logged-in-users-to-view-pages?replies=3

Search for some of those keywords at Google.