Serv-U FTP server provides secure file transfer and secure file sharing for an affordable price. Supported Protocols: FTP, SFTP (SSH) and FTPS (SSL/TLS). Secure file sharing ("ad hoc file transfer" or "send files") Web browser transfers via HTTP/S (including multiple, large files w/ drag and drop). Mobile device transfers via HTTP/S (iPad, iPhone, Kindle Fire, BlackBerry, Android, etc.). IPv4 and IPv6. Supported Operating Systems: Windows: Server 2012, Server 2008, Server 2003, Windows 7, Vista, XP - both 32- and 64-bit editions. Linux: Red Hat (RHEL), Ubuntu, Fedora, CentOS, SUSE and more - both 32- and 64-bit editions. Major Features: Secure File Sharing Event-driven automation (send email, run program, move file, etc.). Brandable interface (your logo, your theme, etc.). Web-based remote administration. Virtual folders permit use with local storage and remote shares - simultaneously. Multiple authentication sources (Active Directory, database, custom). Granular control over bandwidth, storage, permissions and access. Automatic account maintenance (reset password, disable after X days, etc.). Multi-factor authentication. Advanced web clients support drag-and-drop, thumbnails, synchronization, two-panel transfers and more. Popularity: Used by 9 of the Fortune 10 to secure file transfers with employees and business partners. Used by more than 100,000 businesses worldwide. The top-selling commercial FTP server in most countries. Support: Purchase includes free email support and available live phone support to our U.S.-based office. Unattended ("silent") installation options available for IT professionals. FIPS 140-2 and U.S. Army Certificate of Networthiness validated. Each server supports 100's of GBs per day and 1000's of users. See also: FTP Voyager - SolarWinds Free FTP client