Hi Charles,

Please go to knowledge base and create a new kb base for public use. this way you can manage it at all one place.

1. Navigate to Knowledge > Administration > Knowledge Bases.
2. create a knowledge base to make it public.
3. Go to the Can Read section or tab and remove any entries from the list. 
   Everyone gets read permission on all articles in that knowledge base.
4. In the Application Navigator's Filter navigator field, enter sys_public.list and press enter or return.
5. In the Page column, look for page named kb_find.
6. For kb_find, change the value in the Active column to true.
7. In the Page column, look for page named kb_view.
8. For kb_view, change the value in the Active column to true.
9. As a public user, try <instance>/kb_find.do or try directly the permalink to your kb

Thanks,
Arsh