Net::FTPServer is a full-featured, secure, extensible, and highly configurable FTP server which can serve files from a standard file system or a relational database. It is written in Perl, which provides natural protection against buffer overflows. It has feature parity with popular C-based servers such as wu-ftpd. The server offers virtual hosts (IP-based and experimental IP-less). It is configurable in Perl, for both small Perl "hacks" in the configuration file all the way up to complete server "personalities". It supports the latest RFCs and Internet Drafts. Authentication may be done through /etc/passwd, PAM or an authentication plug-in. Resource limits are supported. The server may run standalone or from inetd. chroot() jails are supported along with sophisticated programmable access control rules. All aspects of server use and configuration are comprehensively documented in a manual running to some 50 pages.
NiceSTEP Java Components is a set of Java Beans and standard dialogs that give your Java application the look and feel of N*XTstep, GNUstep, and WindowMaker. It includes useful sample applications: Slide Projector, an image viewer/organizer with integrated slideshow, NiceSTEP Editor, a simple text editor with N*XT style scrollbars, NiceSTEP FTP, a graphical FTP client, and NiceSTEP CD Burner, a front end to mkisofs and cdrecord. Components include a N*XT-style scrollbar, a listbox, checkboxes, radio buttons, a 3D line, a multi-line label with a 3D border, text editing components, a directory navigator, pulldown buttons, popup lists, and more.
oftpd is designed to be as secure as an anonymous FTP server can possibly be. It runs as non-root for most of the time, and uses the Unix chroot() command to hide most of the systems directories from external users--they cannot change into them even if the server is totally compromised. It also contains its own directory-change and directory-listing code (most FTP servers execute the system "ls" command to list files).