If you add a user with uid 0 to group uid 0, and you set in sshd_config AllowRootLogin NO, you`re access will be denied. The only way is to successful login to the linux machine, if you login via ssh or tty. Since noone elaborate how to undo this broken way of adding users, I will. To something like: john:x:1111:0::/home/john:/bin/shĪfter this, you’ll be able to delete user john with userdel command: $ sudo userdel john To delete him, firstly open the /etc/passwd file and change his UID.įor example, change the line: john:x:0:0::/home/john:/bin/sh Userdel: user john is currently used by process 1 You won’t be able to delete a user with UID 0 using userdel command: $ sudo userdel john If you just want to add john to root group, without granting him all root privileges, run the following command: $ sudo usermod -a -G root john Delete User With Root PrivilegesĬool Tip: Log in to a remote Linux server without entering password! Set up password-less SSH login! Read more → John:x:0:0::/home/john:/bin/sh Add User To Root Group Perhaps you already have a user john and you want to grant him root privileges (make him a second root user): $ grep john /etc/passwdįor this, it is required to edit the file /etc/passwd and just change UID and GID to 0: $ grep john /etc/passwd $ sudo passwd john Grant Root Privileges To Existent UserĬool Tip: Dot the i’s and cross the t’s on file and folder permissions in Linux! Make it more clear! Read more → Use the following commands to create a user john, grand him the same privileges as root and set him a password: $ sudo useradd -ou 0 -g 0 john To create a user with exactly the same privileges as root user, we have to assign him the same user ID as the root user has ( UID 0) and the same group ID ( GID 0). Let’s say you need to create a new user and grant him root access to the server. Warning: Before moving forward, read the comments below and DON’T FOLLOW THE STEPS FROM THIS ARTICLE if you don’t understand of what you are doing and what impact this may have! Grant Root Privileges To New User Warning: Giving a non-root user all the permissions of root is very dangerous, because the non-root user will be able to do literally anything that could cause a big trouble if account is hijacked.Ĭheck SSH Server Settings: If you have disabled root access in SSH server settings, by setting PermitRootLogin no in /etc/ssh/sshd_config – you won’t be able to login if your user has UID 0. This can be easily done by changing UID (user id) and GID (group id) in /etc/passwd file.Īlso you will learn how to just add user to root group and i will explain how to delete user with root privileges.Īctually it is not a good idea to give all the privileges of root to a non-root user and outside the test environment i would not recommend to have multiply superusers. In Ubuntu, the sudo users are those users allowed by the root user to perform administrative tasks such as making changes in the configuration files.From this article you’ll learn how to create a user in Linux and grant root access to him or how to grant root privileges to already existent user. Method 3: Temporary Disabling the Root Account.Method 1: Removing the Root Account Password. How to Disable the Root User Account in Ubuntu?.Method 4: Temporarily Switch to a Root Shell. Method 2: Temporarily Switch to the Root User Account.Method 1: Enabling the Root Account Password.How to Enable the Root User Account in Ubuntu?.This blog explains the methods of enabling and disabling the root user account for Ubuntu 22.04. Other than the root user, none of the users are allowed to run the administrative privileges. The root user can decide with which users the administrative privileges can be shared. All the users can be managed by one user, which is the administrative user, also known as the root user. In Ubuntu, different users can work on the same computer.
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