Change Server's Hostname Directadmin 

From:

v3.taowebnhanh.com

To:

v3.shopcode.org

I. Change and Update DNS

vi /etc/hostname

II.Go to admin:2222

https://v3.taowebnhanh.com:2222/CMD_ADMIN_SETTINGS

RESTART:

sudo service httpd status

/etc/init.d/directadmin restart

sudo service directadmin status

service directadmin restart