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Command to add a user with root priviledge

what command to be used to add a normal user with root priviledge

1) I want to add a user and the user should have root priviledge . how can i add ?

2) is it possible via usermod to give root acces for existing user ?
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supportpro
Asked:
supportpro
4 Solutions
 
arnoldCommented:
Root privilege is often assigned through the UID.

What you can do is use SUDO to extend root rights to a regular user.

I.e. edit the /ets/sudoers file and add an entry for the user with ALL rights.

All the user would need to do after login, is to execute sudo bash and after entering the user's password (if prompted), the shell will have root rights.
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albuitraCommented:
There is a bad practice in security.
have you try with sudo ?
http://www.gratisoft.us/sudo/
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Rance_HallCommented:
If you make the user part of the a special group ( called the wheel group on many distros ) that user has the ability to use the su command to become root.

sudo is much more configurable and can allow users to only run specific commands, so sudo is the preferred way, but if you are in a hurry I just type "su -"
enter roots password at the prompt
and bingo I'm root.
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Duncan RoeSoftware DeveloperCommented:
Any user you care to create that has a UID of 0 will have full root privilege.
The security thing is really dependent on your environment. I've worked in environments which would never ever be connected to the Internet and where everyone knew the password to "toor". That project finished a while ago though.
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EmpireIronCommented:
modify /etc/password and change the uid to 0 that will give root access to that user. I do agree though that you should run visudo and add the users to the sudo list instead. Much more secure
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RapidDrinkerCommented:
groupmems -a  -g wheel
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Rance_HallCommented:
There were two equally valid approaches mentioned here, using su - to temporarily become root, and configuring sudo to be able to run specific commands with root privs

If it was up to me, I'd split the points between the first suggestion of each of the two types
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