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For security reasons, administrative tasks in Xubuntu can only be performed by users with special administrative privileges. The first user account created during installation will, by default, be able to perform administrative tasks.
When you run an application that requires administrative privileges, you will be asked to enter your user password. This helps to protect your system from malicious files and accidentally selecting options which may change the way your system works.
Each time you type your password, the system remembers it for 15 minutes so that you do not have to type it again.
You can restrict and enable administrative access (sudo) to users with the Users and Groups application:
Click
→ →Click
and enter your passwordSelect the user who is to be given administrative access and press
Select the User Privileges tab
Check the box next to Administer the system and press