Who can use su command?

Who can use su command?

su Command Options This can be any user, not just root. –c or –command [command] – Runs a specific command as the specified user. – or –l or –login [username] – Runs a login script to change to a specific username. You’ll need to enter a password for that user.

Who can su root?

Any users in group sysadmin can su to root. Root can su to any user without a password. Any users in the group dbaadmin can su to oracle but not any other user. All other users cannot su.

Can root su to any user?

You cannot prevent root from su ing to any user.

Who can use sudo?

sudo has been around since the early 1980s and has become the standard means of superuser operation for almost all distributions. When you install a modern distro, the user you create during the install is added to a list of users called sudoers. These are the users who can use the sudo command.

How can I su user without password?

You can also su to another user without requiring a password by making some changes in the sudoers file. In this case, the user (for example aaronk) who will switch to another user account (for example postgres) should be in the sudoers file or in the sudo group to be able to invoke the sudo command.

What is the difference between su user and su user?

The su command is used to switch to another user, in other words change user ID during a normal login session (that is why it is sometimes referred to as switch (-) user by a number of Linux users). If executed without a username, for example su – , it will login as root user by default.

Is sudo same as su?

This is a key difference between su and sudo. Su switches you to the root user account and requires the root account’s password. Sudo runs a single command with root privileges – it doesn’t switch to the root user or require a separate root user password.

What does su sorry mean?

It either means you’re typing your password incorrectly, or you’re not allowed to sudo su. I think it’s the first issue though, that what it usually says when you enter the wrong password.

What permissions does sudo have?

The term “Sudo” means substitute user, and do. It is a program used for managing of user permission based on a system configuration file. It allows users to run programs with the privileges of another user, by default, the superuser.

How do I restrict sudo access?

How to disable “sudo su” for users in sudoers configuration file

1. Login as root account into the server.
2. Backup the /etc/sudoers config file. # cp -p /etc/sudoers /etc/sudoers.ORIG.
3. Edit the /etc/sudoers config file. # visudo -f /etc/sudoers. From:
4. Then save the file.
5. Please do the same to other user account in sudo.

What is su root?

su root (which can be shortened to just su ) runs the su command as the user who invoked it. sudo runs the specified command ( su ) as root. Running su as root is essentially a no-op, though it probably starts a new shell.

What does the SU Command mean in Linux?

The su command, which is short for substitute user or switch user, enables the current user to act as another user during the current login session.

How to run a su command as a different user?

To run a specific command as a different user, use the –c option: su –c [command]

What is the user ID for SU ( Unix )?

su (Unix) When executed it invokes a shell without changing the current working directory or the user environment. When the command is used without specifying the new user id as a command line argument, it defaults to using the superuser account (user id 0) of the system.

How to switch to root using su command?

However you can switch to root by running the following command and entering the currently logged-in user’s password: The su command lets you switch the current user to any other user. If you need to run a command as a different (non-root) user, use the –l [username] option to specify the user account.