Allowing `sudo su` without password over Ubuntu
122621
Allowing a user to use sudo without a password
12692
How can I set up password-less SSH login?
67217
How is sudo safer than directly using su if the user is granted access to all commands?
124236
Why I'm not asked to set a password for Root when Installing Ubuntu?
157144
How to sudo visudo without a password, remove all prompts for password
133958
Why is the 'sudo' password different than the 'su root' password
43428
Run script as root at login (no sudoer user, shell session)
5001
Remote desktop without a password
101530
How do I set up SSH so I don't have to type my password?
74011
allow sudo to another user without password
157633
How to make 'sudo' grab the password from a file?
68545
How to set up passwordless SSH access for root user
149141
What happens if you do sudo passwd without specifying a user?
58430
Run script with arguments as sudo without being asked for password
14919
How do I run a 'sudo' command inside a script?
86191
What is the difference between 'sudo' and 'su -c'
120107
Permission denied when accessing su