I need to authenticate when installing or removing software
82
How do I reset a lost administrative password?
28784
How can I lock down ubuntu?
157645
Is it possible to automate testing involving Two-factor Authentication?
56051
How do you protect your software from illegal distribution?
37086
Is there a free trusted virtual machine image with Ubuntu preinstalled?
118633
user rights needed for texlive install
90822
How can I install just security updates from the command line?
70235
What registry access can you get without Administrator privileges?
32587
Automatically login and lock
59643
Difference between "log in", "authenticate" and "sign in"?
5162
How to fake a package version installed?
14551
How do I remove Ubuntu's password requirement?
156896
Is it possible to create an Admin Password Key to conveniently login?
2291
Is there a way to do full disk encryption after the install?
22572
Live CD asks for a username and password
108315
Checking to see if a user has a licence for a managed package
103411
How can I prevent someone from resetting my password with a Live CD?