Open the Cyberduck application (if you do not have Cyberduck installed, it is available through the Mac Installers).
Click Open Connection.
Select SFTP (SSH File Transfer Protocol) from the first drop down menu.
Enter www.appstate.edu in the Server field.
Enter your ASU username and password in the Username and Password fields.
The first time you connect, you will need to accept a host key fingerprint from the server. Click Always and you will not be prompted again.
Upon successful login you will be in your home directory on the server. You will need to place web files in the public_html folder.
Inside your public_html folder click the arrow next to the gear icon and select Upload (you can also drag and drop to your folder).
Browse your computer for the files you wish to publish to your site. Click Upload.