Institutional authentication

We have OJS setup with only registered users to get access to the papers.

How do I setup OJS 3 to give users from a particular IP range access to the papers?

Do I create a user account and only permit login from the IP range?

Any ideas welcome

There is no user interface for subscriptions in OJS3 at the moment. PKP is planning to add that in 3.1. which will be released in May. Implement subscription support · Issue #1816 · pkp/pkp-lib · GitHub