F*EX (Frams' Fast File EXchange) is a Web based service for sending very big files from one person to another. The sender uploads the file to the F*EX server and the recipient automatically gets a notification email with a download URL. Files are automatically deleted after download or an expiration date. The recipient and sender only need an email program and a Web browser. Sending to multiple recipients needs storage on the server only once. In contrast with other file transfer services, it has no file size limits at all and comes with shell tools for scripting up/downloading.
FTP Rider is a collection of Python scripts that build an FTP search engine. Only path/filenames are indexed, not the contents of the files. The indexer recursively follows all directories. It indexes multiple FTP servers concurrently (default is 50), and the information is stored in a MySQL database.
Factor is a dynamically-typed stack-based programming language. Factor runs on various OSes and CPU architectures, and provides an optimizing compiler, interactive development environment, powerful collections, higher order programming, continuations, and a growing library of contributed code.
The Fedora software is based on an architecture known as FEDORA (Flexible Extensible Digital Object and Repository Architecture). The software takes advantage of distributed (or local) Web services, and makes representations of objects (called disseminations) available via HTTP. It is particularly good at handling complex digital objects where source datastreams and behaviors are distributed. There are two binary distributions (server and client), and a source distribution (including all libraries and source code needed to build any distribution).
FilterProxy is a Perl script that acts as a generic Web proxy. It is unique in that it allows you to install modules that can perform arbitrary transformations on HTML (or any other MIME-type) and HTTP headers. It filters ads by stripping HTML from the page, anonymizes requests by removing Referer and User-Agent headers, compresses HTML content, and de-animates animated gifs. Configuration is done via Web-based forms or editing a Perl data structure.