How to add users and give sudo permission in linux

This article introduces how to increase users and grant sudo permissions in linux. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you.

One: create the user "daiyu"

Useradd-m daiyu

Second: set the password for the newly created user, and enter the new password after entering enter.

Passwd daiyu

Three: set sudo permissions for newly created users

A) switch to the root account and add write permission to the sudo file. The default is read permission.

Chmod Ubunw / etc/sudoers

B) Open the file vim / etc/sudoers and add under the line root ALL= (ALL) ALL

Daiyu ALL= (ALL) ALL

# at the end of the file, append this content to prevent ordinary users from entering root mode through the sudo su command (operate in root mode)

Daiyu ALL= (ALL) all Magneto Binxsu

# sudo ignores password

Daiyu ALL= (ALL) NOPASSWD Vol all Magneto Binxxsu

C) cancel the write permission of the sudo file again

Chmod Umurw / etc/sudoers

Four: note that the password entered during sudo is the password of the user "daiyu"

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Ubuntu:

Chmod Ubunw / etc/login.defs

Just add SU_WHEEL_ONLY yes at the end to save and exit.

Chmod Umurw / etc/login.defs

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