Becoming the root user
sudo suWhich users are allowed to use sudo
You can use this command to open the sudoers file:
sudo nano /etc/sudoers
BE VERY CAREFUL TO COPY THIS FILE BEFORE YOU CHANGE IT – IF YOU MAKE AN ERROR YOU CAN STOP YOURSELF BEING ABLE TO OPEN THE FILE USING SUDO (changes to it are instant)!
Grandting permission for specific uses of sudo
These example let Apache use sudo within web pages to access particular named files (to avoid giving the apache user account www-data global sudo access which would be a security risk)
An example enabling it to run a single executible, add this to the end of the file:
www-data ALL=NOPASSWD: /home/pi/some_executable_nameAn example enabling it to run several different executables, add this to the end of the file:
www-data ALL=NOPASSWD: /home/pi/some_executable_name, /home/pi/some_executable_name some_option, /home/pi/some_other_executable_nameBecoming root on the command time for a few commands
sudo -i
[User is now root, you can use any commands without needing sudo]
exit
USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through resources like this. We hope you find it helpful.
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