Add a new user account with admin access on Linux

栏目: IT技术 · 发布时间: 6年前

内容简介:files.Commands to add or create a sudo user (admin) on an Ubuntu or Debian Linux server:

H ow do I add a user account with admin (sudo) access on Ubuntu or CentOS Linux cloud server? How can I add a new user with admin account level access in Linux?

On the Linux operating system, one needs to use the sudo command to provide admin-level access. In other words, the sudo command grants admin privileges to ordinary users. This page shows how to create a new user with admin (sudo) access on both Ubuntu/Debian and CentOS/RHEL servers. Please note that the following commands will update/etc/passwd,/etc/group, and /etc/shadow

files.

Create a new user account with admin (sudo) access on Ubuntu or Debian Linux

Commands to add or create a sudo user (admin) on an Ubuntu or Debian Linux server:

  • Open the terminal application
  • For remote Ubuntu/Debian server use the ssh command and log in as the root user using either su or sudo.
  • Create a new user named marlena , run: adduser marlena
  • Make marlena user ‘sudo user’ (admin) run: usermod -aG sudo marlena
  • Verify it by running the id marlena command
  • Log in as marlena: su - marlena . Than run sudo command for verification. For example: sudo ls -l /etc/shadow

Add a new user account with admin access on Linux

A note about granting sudo account for an existing Ubuntu/Debian Linux user

The syntax is:

usermod -aG wheel UserNameHere

Log in as the root user and add an existing user accout named ‘sai’ to sudo group:

usermod -aG wheel sai
id sai

See “ How to create a new sudo user on Ubuntu Linux server ” for more info.

RHEL or CentOS create a new user account with admin (sudo) access

Procedure to add or create a sudo user (admin) on CentOS or RHEL:

  • Open the terminal application
  • For remote CentOS server use the ssh command and log in as the root user using either su or sudo.
  • Create a new CentOS user named vivek , run: useradd vivek
  • Set the password, execute: passwd vivek
  • Make vivek user ‘sudo user’ on CentOS/RHEL, run : usermod -aG wheel vivek
  • Verify it by running the id vivek command

Add a new user account with admin access on Linux

How to grant sudo access for an existing RHEL/CentOS Linux user

The syntax is as follows for the usermod command andid command:

# usermod -aG wheel User-Name-Here

Add an existing user account named kirsh to wheel group. In other words, type the following two commands:

# usermod -aG wheel krish
# id krish

See Add / Create a Sudo User on CentOS Linux 8 for more info.

Conclusion

You learned how to create a sudo (admin level access) user account on both Ubuntu/Debian and RHEL/CentOS Linux servers.


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