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Why should sudo be used instead of su root?
sudo vs su The main difference between the two is that su requires the password of the target account, while sudo requires the password of the current user. Therefore, it is much safer to use sudo since it doesn’t include exchanging sensitive information.
Is it safe to use sudo?
Short answer: There is no way to securely use sudo if your regular user may be compromised. Use it only for convenience, not for security. The same applies to su and all other programs that may be used to elevate your regular user to a more privileged one.
When to use sudo to allow non-root users?
When administering a server, there may be some users who need limited root functionality to access certain, but not all, root functions. sudo (superuser do) allows you to configure non-root users to run root level commands without being root. Access can be given by the root level administrator through configuration of the /etc/sudoers file.
What’s the difference between Sudo Su and root?
So, e.g. sudo vi /etc/hosts would allow you to edit the hosts file as if you were running as root. You don’t even need the root password, just your own login password. And of course, sudo su would allow you to simply become root.
How does sudoers check for root rights in Linux?
Remember, Linux is built with security in mind. When you want to run a command that requires root rights, Linux checks your username against the sudoers file. This happens when you type the command “sudo”. If it determines, that your username is not on the list, you cannot run the command/program logged in as that user.
What does Sudo mean in the Linux command line?
Well, sudo means, “super user do”, “su” means, “super user”. This command indicates that you want to be granted a super user and gain super user/root privileges. Linux then checks a special file and sees if you are allowed to be granted root privileges, similar to a VIP CLUB.