Some of the feeds in Jiglu, such as those in a private group, require a user to provide a username and password for access. This will also be the case when using the Atom Publishing Protocol to submit content to Jiglu.
Sometimes you may want to restrict such access, for example if your organisation has a policy that requires mandatory two-factor authentication for ordinary users, which will not work with feeds. If this is the case then you can choose specific roles that you want to be able to use feeds - for trusted users for example.
Go to the system settings, choose the User security category and then in the Feed access section choose the roles that you want to restrict access to for feeds or the Atom Publishing Protocol. If you need to add a new role, go to the Roles category and add one. When you edit a user the form will contain a list of roles to which they can then be assigned.