Login to your server control panel by following the appropriate link below. If you are unsure which server your domain is hosted on you can ping your domain  using the command prompt on your computer - " ping mydomain.com.au ".  The IP address returned will help you identify your server.

Cpanel

IPADDRESS: 116.0.23.215
login

Plesk (linux)

IP ADDRESS: 203.62.170.150
login