From outside University of Nicosia premises, you can use either the OpenAthens or Proxy Server authentication (more instructions can be found at OpenAthens Authentication and Proxy Server Authentication sections).
This service is only available for currently enrolled/ employed University/ Intercollege students and staff.
Most of the library resources allow remote access via both authentication methods.
OpenAthens is the newer and easier method, if you remember your UNIC email credentials. However, there are some resources (just a few!) that allow access only via Proxy Server authentication. You will be notified about them with an Off-campus access note under their link on the library website.