File Transfer Software Secure FTP (SFTP) is required to transfer your files to the Columbia Web server. Some popular SFTP clients are WinSCP for Windows, and Cyberduck for Macintosh OS X. Related Information Cyberduck WinSCP Static Content Web Hosting — HTML Set your host to cunix.cc.columbia.edu. When uploading files, it is important to set the file permissions correctly so they can be seen on published web pages. Your Secure FTP software probably has a feature which will allow you to set default permissions when you upload files.