> For the complete documentation index, see [llms.txt](https://docs-jmapserver-lima.k2geospatial.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-jmapserver-lima.k2geospatial.com/e/administrator/jmap-server-administrator-manual/jmap-server/security/users-and-groups.md). # Users and Groups In JMap, user accounts and groups are used for access control and collaboration purposes. You can manage users and groups in JMap Admin by clicking on **Users / Groups** from the JMap Server section. This section presents three tabs: Users, Groups and User Manager. ## Special Users and Groups Two special users and two special groups always exist in JMap: **administrator, anonymous, everyone**, and **authenticated users**.


Administrator	The administrator user allows you to access JMap Admin following a new installation (this user has administration rights in JMap). This user’s password field is left blank, therefore, it is highly recommended to add a password as soon as possible. Read below for more information. The administrator user always exists in JMap and cannot be deleted.
Anonymous	The anonymous user allows users who are not authenticated to access certain resources. It can be used to configure access to a project without authentication, for instance. The anonymous user always exists in JMap and cannot be deleted. In addition, this user’s password (blank) cannot be modified.
Everyone	The everyone group is used to give all users access to a resource, provided they are authenticated. The everyone user is not displayed in the list of JMap groups. It is only visible in interfaces that allow you to define permissions, where applicable.
Authenticated users	The authenticated users group is used to allow all users except anonymous to access a resource. Authentication is required for this group.

## Creating users and groups You can create a new user or group by pressing **Create** from the **Users / Groups** section. This will bring you to the new user or group configuration section. {% hint style="info" %} You can only create users and groups if you are using the JMap account database or an external database that is not in read-only mode. {% endhint %}


Users
User name	Enter a unique user name (login name) for the new user. You will not be able to save it if the name already exists.
Password	Enter a password for the new user. The password field can be empty but this is not recommended. Passwords are encrypted. Users of JMap Web applications can change their password from the application. This is only possible if the user accounts are managed with JMap DB user manager.
Confirm password	Enter the password a second time to confirm.
Full name	Enter the full name (first name and last name) for the new user. This is optional.
Email	Enter the email address of the new user. It is used when sending maps to the user. This is optional.
Hidden	Select this option if you want the new user to be hidden from user directories.


Groups
Group name	Enter a unique group name for the new group. You will not be able to save it if the name already exists.

## Modifying users and groups You can modify an existing user or group by clicking on its name in the list. {% hint style="info" %} Once a user is created, its user name cannot be modified. {% endhint %} To add users to a group, press ![img](/files/YAO1WY3e46KcU0HcFZjT) and a list of available users will be displayed. Select the users to add to the group and press **Add**. To remove users from a group, select the users to remove and press ![](/files/4CTLWKFl0hRvCYe9DSFB). ## Deleting users and groups You can delete a user or group by selecting it in the list and pressing **Delete**.