su and sudo without typing passphrase twice
74011
allow sudo to another user without password
140654
Giving access of a set of commands to a non-root user without sudo
120000
Disable password access through SSH?
92318
How to run sudo command with no password?
116601
What is the difference between 'su -' , 'sudo bash' and 'sudo sh'?
20200
How to get sudo to prompt you for a password each time
7317
how to: Please sudo, do _not_ setup any environment, especially $SUDO_USER?
13760
How do I grant sudo privileges to an existing user?
130404
How to make password show asterisks as I type it when running `sudo` command?
107055
What is the functional difference between sudo su and sudo -i?
14589
Execute sudo without Password?
41395
Alternative way to run a sudo command on startup
36582
How to run an application using sudo without a password?
101530
How do I set up SSH so I don't have to type my password?
16283
How to make `sudo` preserve $PATH?
113730
how to run two commands in sudo?
122675
Why don't I have a password for "su"? Problems with "sudo"