I followed the instructions on https://www.dynu.com/Resources/Tutorials/DynamicDNS/How-to-access-CentOS-Ubuntu-Linux-Machine-remotely but cannot seem to connect to my computer via my host name druluth.com. When checking my port 22 status I receive a success message after which I installed dynuiuc but when trying to ssh into username@druluth.com I get permission denied when inputing the password for the server. Please help

Thank you

The username and password you use to connect to your server are set up by you during server install. If you can establish a connection using ssh, then your dynamic DNS and port forwarding would have been set up correctly.