Linux change password for root is needed to access system files and execute commands. Remember user can always change it but when you need to modify the password of root you have limited privilege access over servers that usually grant system administrator access to servers that is usually provided with RBAC(role-based access control) mechanism. To protect your data and system from unauthorized access you must change the password of root at regular intervals or else you may get caught by attackers or even your employees may forget the password and you will not be able to access your server. Here you can learn some useful tips that helps you in performing the steps as quickly as possible.
The first thing that you should do is reviewing your current password. You can find the information about it in the configuration file /etc/passwords file. The most common way of changing the password is via the command shell. For this you just need to type the command “psp3” to get started. In the command shell type the command “setswap” and then press the Enter key.
When you are in the shell you can also try to use the command “date” to check the date and time. This method requires root privileges. If you have not set the Unix time system then you may use “date” command in the command shell. Linux change password for root doesn’t require much time in configuring it. After successful configuration, you need to check the date and time and clear any existing time stamp.
The second step is to create the user database for the Linux change password for root. It is important to create the user database for the root ( linux ) user. This will allow the user to login as the normal user and also create any necessary group. You need to create the user database for the unix group by typing the command “groups” in your shell prompt. You can check your file system to see whether there is already a group or not.
Now that you have user directory created, you need to create the login unix group. Type the command “newuser” and you will get user name and password for the newly created group. To change your Linux password, you will have to change the password of the user in the group. You can check the values of the umask and chage for the shadow file of the normal user and the group.
If you have done it successfully, you will notice that the password for the group has been changed. Before changing the password of the group, you should remove the group from the groups list of the Control Panel. The reason for removing it is to prevent the user from being able to log on as the root user. This can be achieved by right-clicking on the group and selecting the “Remove” button. Another way of preventing the user from being able to login as the root is to add the line “root” in the login file.
You can try to make the Linux change password process easier by using the following simple trick. When you login as the user named praetorian you can add the string “praetorian” at the end of your home directory. The string must be enclosed in quotes and your home directory must also contain slashes. The next time you log in as the root user, your Linux will verify your password by following the pattern you used earlier.
All these methods are simple and easy to follow. You will be able to change password of your Linux immediately after login. The above method is the safest way for preventing the passwords of your Linux from getting expired. As soon as you login as root, the Linux system will automatically check your password and the process will be repeated whenever you use the password.