linux-adduser.md

Add User Linux

Add user called newuser, when logged in as root:

$ adduser newuser

To grant root privileges, open this file with default editor (nano):

/usr/sbin/visudo

Add the user’s name and the same permissions as root under the the user privilege specification

# User privilege specification
root    ALL=(ALL:ALL) ALL 
newuser	ALL=(ALL:ALL) ALL

Hit Ctrl+o to write your changes. It will ask to write to /etc/suders.tmp, change it to /etc/sudoers

Disable root login

Edit the following file

$ sudo vim /etc/ssh/sshd_config

edit thie following line from yes to no:

PermitRootLogin no

then restart ssh

$ sudo service ssh restart

Delete User

userdel newuser
rm -rf /home/newuser