How to install DirectAdmin on the server with CentOS

Instructions, requirements: https://www.directadmin.com/installguide.html

Setup fully qualified hostname:

hostname something.something.something

wget http://www.directadmin.com/setup.sh;chmod 755 setup.sh;./setup.sh

during setup, you will be invited to select network device. Use the one that match your public (license) IP. Example on VPS it is: venet0:0

Access http://yourserverIP:2222
using login data provided after installation

How to change DirectAdmin license on already installed server

Read this tutorial: http://help.directadmin.com/item.php?id=30
Or this one: http://www.ipserverone.info/control-panel/how-to-change-update-directadmin-license/

It is about executing following commands:
cd /usr/local/directadmin/scripts
./getLicense.sh CLIENT_ID_HERE LICENSE_ID_HERE
service directadmin restart