`sudo su` doesn't ask for password
45275
sudo credential caching on by default
7317
how to: Please sudo, do _not_ setup any environment, especially $SUDO_USER?
134935
Root access that can't change root password?
143096
Sudoers NOPASSWD for single executable but allowing others
122621
Allowing a user to use sudo without a password
9326
How to enable root login?
124236
Why I'm not asked to set a password for Root when Installing Ubuntu?
18871
How often is the password asked for sudo commands? Where can I set it up?
121291
SSH login as root fails, but I'm sure I entered the right password
114847
"sudo -u postgres psql postgres" does not ask for password
45657
I Can't login as root with su command, but I can with SSH
116001
Why does the root user need sudo permission?
47119
Sudo comes up with an error, cannot run anything as root
119015
Sudo doesn't work on Aliases
13760
How do I grant sudo privileges to an existing user?
34852
What's the difference between sudo su - and sudo su --
44419
How do I use redirection with sudo