A remote server (often referred to as the web server) is where you publish your site files so that people can view them online. The remote server is simply another computer like your local computer with a collection of files and folders on it. For example, an FTP server or a WebDav server.
You’ll specify a folder for your site on the remote server, just as you specified a folder for your local site on your local computer. Dreamweaver refers to the specified remote folder as your remote site.
When you set up a remote folder, you must select a connection method for Dreamweaver to upload and download files to and from your web server. The most typical connection method is FTP, but Dreamweaver also supports local/network, FTPS, SFTP, WebDav, and RDS connection methods. If you don’t know which connection method to use, ask your ISP or your server administrator.