Ubuntu Server – Add a new User as Sudoer
sudo useradd -d /home/testuser -m testuser
sudo passwd testuser
sudo nano /etc/sudoers
root ALL=(ALL) ALL
testuser ALL=(ALL) ALL
sudo useradd -d /home/testuser -m testuser
sudo passwd testuser
sudo nano /etc/sudoers
root ALL=(ALL) ALL
testuser ALL=(ALL) ALL