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To add a new user or group to the permissions list, search for either a group or user in their respective sections and choose Add. The group or user will appear in the list of groups; select the appropriate checkboxes to assign them permissions, then choose Save all.
If you're unsure of a group or user's name, you can search by choosing the icon. You can use an asterisk '*' as a wildcard if you need to.
To bulk assign or revoke permissions, choose either Select All or Deselect All from the Actions dropdown list to the right of each user and group.
Anonymous users are users that aren't signed in to your Confluence site, and, by default, they won't have access to any of your content. If you want to grant access to a space for anonymous users, you can edit the 'Anonymous Access' section at the bottom of the permissions page.
Tick or un-tick the checkboxes to suit your preference for anonymous users, then choose Save All to apply the changes.
You can't grant space administration rights or page restriction rights to anonymous users.
To remove a user or group from the space permissions list, deselect all the checkboxes for that user or group and save the changes. The user or group won't appear in the list once you save.
If you're a Confluence Administrator, you can set the default permissions that will be applied to new spaces. Default permissions are configurable for groups only, not for individual users or anonymous users.
To set the default space permissions:
Choose the cog icon , then choose General Configuration under Confluence Administration
Screenshot: Default space permissions
Users with System Administrator permissions are able to manage permissions for spaces, including adding or removing Space Admin permissions for a space.
To manage space permissions:
Choose the cog icon , then choose General Configuration under Confluence Administration
To recover Space Admin permissions:
Choose the cog icon , then choose General Configuration under Confluence Administration
The user will then be able to choose Manage Permissions, and add any appropriate permissions to the space. Requests to recover permissions are recorded in the Confluence log files.
There's no way to change a number of space permissions at once in the Confluence user interface. Instead, take a look at the Confluence Command Line Interface. You can use the CLI documentation as a resource, and for an introduction to the CLI, check out this blog post.