sudo apt update
sudo apt upgrade
sudo apt install wget gcc g++ make flex bison openssl libssl-dev
cd /usr/local/src
wget https://www.directadmin.com/setup.sh
chmod +x setup.sh
sudo ./setup.sh
sudo ufw enable
sudo ufw allow 2222
sudo ufw allow 80
https://YOUR_SERVER_IP:2222
Also you can follow the official guidelines here: https://docs.directadmin.com/getting-started/installation/installguide.html
