Granting of permissions to use Confluence can be done on the basis of membership of a group, to a particular user, or to the 'Anonymous' user. There is not an actual user named 'Anonymous', it is just a name for a category of granted permissions.

In the security administration of Confluence, the 'Anonymous' user includes all logged-in users, and anonymous users who have not logged in. That is, if you allow the 'Anonymous' user to do something, you are allowing all users to do it.

To enable public access to a confluence space, you must give 'Anonymous' the following permissions:

  • The global 'Use Confluence' permission. This permission determines whether a user can access the Confluence installation at all, and is set by the site administrator in Administration -> Global Permissions.
  • The relevant space permissions. The 'Anonymous' user must have at least the 'View Space' permission for a space to be publicly accessible. You set these permissions via 'Browse Space' -> 'Space Admin' -> 'Permissions'.

While these two permissions are the bare minimum necessary for public access to a space, you may wish to give 'Anonymous' additional permissions if you want a space to allow anonymous comments, or anonymous editing.

We severely warn against giving the 'Anonymous' user any administrative privileges, either within a space, or especially globally over the Confluence instance. Giving administrative privileges to untrusted users may lead to a serious security compromise of your site.

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