Linux creates a new user and logs in remotely using a certificate

Due to business needs, it is necessary to create multiple users on the server to facilitate multi-person maintenance, then you can use certificate login to create multiple user logins, and then users can manually switch if they need root privileges. The following briefly introduces how to perform multi-user on Linux Create and log in with a certificate.

Add user

adduser 用户名

set user password

passwd 用户名

Add user to docker user group

Use the user to operate the docker command line

gpasswd -a 用户名 docker

Add user wheelto usergroup

For systems based on RedHat distributions, such as CentOS and Fedora, the user group wheel has been granted sudo privileges; therefore, we can obtain sudo privileges by adding new users to the wheel user group:

usermod -aG wheel 用户名
# 查看用户所属组
groups 用户名

Enable SSH key login for new users

switch to user

su 用户名

create key

ssh-keygen -t rsa

Rename the public key to authorized_keys

mv ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys

Download private key certificate login

Use tools to download the private key id_rsa or directly use catthe command to copy the content to the file

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Original link: Create a new user in Linux and log in remotely using a certificate