During installation of Kubuntu, a single user and password is created. However, in order to keep your computer and documents safe, it is important to use a separate user account for each person that uses the computer. In this way, multiple users can have access to the computer while preserving and protecting their own personal settings and files.
On Kubuntu, each user has their own home directory in which files and settings are stored. Furthermore, each user can be part of one or more groups, which define which parts of the system that user has access to.
You may need administrative rights to make some of the changes detailed below.
To modify the users or groups on your system, you can use User Management located in System Settings. To access go to → .
To add a new user, first click on the Administrator Mode... to login as an administrator. Enter your user password in the password dialog. Next click on New..., enter the required information and then click OK.
To edit the properties of each user, click the Modify button located in the main Users window.
To give a new user administrative rights, edit that user's properties,
and under the Secondary Groups text box,
enter admin
. Press OK when you
have completed your modifications.
To add a new group, select the Groups tab and click New.... Choose a name for the new group and, if you want, change the default value for the Group ID. If you try to allocate a Group ID that is in use, the system will warn you.
You can add users to the newly created group by selecting a user from the left menu and clicking on the Add button. Removing a user is as simple as adding one: select a user from the right menu then click Remove. When you are ready, click OK and the new group with its users, if inserted, will be created.
To edit the properties of a group, from within the Groups main window, choose a group name and click on the Modify... button.
To remove a user or a group from the system, select the user or group you want to delete and click Delete....