Forget the password
19524
How can I determine the sudo password?
64061
Forgotten iOS Restrictions Password/Passcode
32924
How to ban an IP temporarily after several incorrect password attempts?
1515
How can I reset a Mac's password from Single User Mode?
109241
How to set a short password on Ubuntu?
13933
Shutdown from terminal without entering password?
92301
Is it possible to shutdown remote Computers without inputing the password?
33713
Forgot Password: what is the best method of implementing a forgot password function?
17915
force to forget logins
149274
passwd pauses after bad password has been entered
120000
Disable password access through SSH?
67876
Is there a password manager for Ubuntu
61493
How to stop my machine asking for multiple passwords when I log in?
69126
How can I change my password?
150956
How can I change a user's password?
226
How do I reset a lost password (using recovery mode requires me to type the password)?
103411
How can I prevent someone from resetting my password with a Live CD?