Need to add extra user accounts in Ubuntu but not sure where to start? Want to change folder permissions? Well just have a look through todays tips and I am sure you will find what you need to do with user management!
How to set/change/enable root user password
sudo passwd root
How to disable root user account
sudo passwd -l root
How to allow root user to login into GNOME
System -> Administration -> Login Window
Login Windows Preferences
Security Tab -> Security -> Allow local system administrator login (Checked)
How to switch to root user in Console mode
sudo -s -H
Password: <specify user password>
or
sudo su
Password: <specify user password>
How to add/edit/delete system users
System -> Administration -> Users and Groups
Users and Groups
Users Tab -> Add User…/Properties/Delete
or
sudo useradd matt
sudo userdel matt
How to add/edit/delete system groups
System -> Administration -> Users and Groups
Users and Groups
Groups Tab -> Add Group…/Properties/Delete
How to automatic login into GNOME (not secure)
System -> Administration -> Login Window
Security Tab -> Enable Automatic Login (Checked)
Now choose a user from the drop-down menu.
How to allow more sudoers
sudo adduser a_username admin
How to change files/folders permissions
Right click on files/folders -> Properties
Permissions Tab -> Read/Write/Execute (Checked the permissions for Owner/Group/Others)
How to change files/folders ownership
sudo chown system_username /location_of_files_or_folders
If you want to change ownership of all containing files and folders recursively, use the -R option like this:
sudo chown -R system_username /location_of_files_or_folders
How to change files/folders group ownership
sudo chgrp system_groupname /location_of_files_or_folders
If you want to change group ownership of all containing files and folders recursively, use the -R option like this:
sudo chgrp -R system_username /location_of_files_or_folders
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May 19th, 2007 at 2:48 pm
After changing the ownership of my intall using the command “sudo chown -R brandon /”. Ubuntu won’t connect to the internet and many of my system apps, including “users and groups” say that they are starting, but then never appear. I am very new to the linux environment and am worried that I really screwed something up. Can you help?