Difference between revisions of "Useradd"

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* [[AWS]]: <code>[[aws iam create-role]]</code>
 
* [[AWS]]: <code>[[aws iam create-role]]</code>
 
* [[Kubernetes services accounts]]: [[kind: ServiceAccount]]
 
* [[Kubernetes services accounts]]: [[kind: ServiceAccount]]
 +
* [[kubectl create clusterrolebinding]] ops-user-cluster-admin-binding --clusterrole=[[cluster-admin]] --user=ops-user
  
 
== Activities ==
 
== Activities ==

Revision as of 13:00, 31 October 2023

useradd[1] - create a new user or update default new user information (man)

useradd -m YOUR_USERNAME -s /bin/bash
        -m, --create-home

useradd -m YOUR_USERNAME --uid #### --gid #### -s /bin/bash --create-home

useradd -m YOUR_USERNAME -g your-group -s /bin/bash --create-home

-c

Add user using Ansible

 - user:
     name: YOUR_USER_NAME
     shell: /bin/bash
     groups: sudo
     append: yes
     password_lock: yes

Add user using bash

Example creating a user in Ubuntu with bash shell, ~/.ssh directory and part of group sudo using useradd[2] command:

#!/bin/bash
USERNAME="Your_user_name"

# Create user and add to sudo group
  useradd  --create-home -s /bin/bash $USERNAME
  sudo usermod -aG sudo $USERNAME 

#Create ssh directory and lock password login
  mkdir /home/$USERNAME /home/$USERNAME/.ssh
  chown $USERNAME.$USERNAME /home/$USERNAME /home/$USERNAME/.ssh 
  passwd -l $USERNAME 


passwd -l $USERNAME // for disabling password login
passwd -u $USERNAME // will unlock account if needed


After creating user you can copy ssh key using ssh-copy-id and modifying sudo for giving new user privileges.

useradd command

useradd[3] command.

-m --create-home
-M, --no-create-home
-N, --no-user-group
-s --shell

useradd -m YOUR_USERNAME -s /bin/bash


You can also consider activating passwordless sudo for your accounts.

Related commands

Activities

See also

  • https://linux.die.net/man/8/useradd
  • http://man7.org/linux/man-pages/man8/useradd.8.html
  • http://man7.org/linux/man-pages/man8/useradd.8.html
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