PMilter implements Sendmail's "milter" mail filtering protocol in Perl, allowing scripts direct access to the SMTP transaction in progress, rather than filtering later. It can function as a drop-in replacement for Sendmail::Milter, though PMilter does not require threads or the "libmilter" API to be available.
snip is an Ant task designed to help with the single-sourcing of program documentation. This task extracts snippets of text from files, placing them into properties in the Ant project. These properties can then be used by any other Ant task, and are particularly useful when referenced by <filter>s within the <copy> task. It was originally written to keep snippets of sample code in API documentation synchronized with the actual sample classes by automatically extracting code from the samples when the project is built.
Rundoc is an Ant task designed to help with the single- sourcing of program documentation. This task replaces special commands embedded within text files with their output in a specified format. Currently, only Docbook format is supported. It was written to keep sample code output in program documentation synchronized with the actual output of the current code, by running the referenced code when the documentation is built.
Netflow is a de-facto standard of traffic analyzing and accounting in large scale networks. It is supported by expensive hardware routers. ng_netflow implements this nice feature on FreeBSD router. This allows network administrators to insert a FreeBSD boxes into their routing infrastructure. It is run in the kernel, so it is considered to carry heavy load.
netics is an extensible network statistics collector. It feeds the data stream (after it strips off the appropriate protocol headers) to modules gathering statistical data, and then displays the results at specified intervals, either in a "progress bar" mode or as raw statistics. Currently it supports two statistics, both involving entropy: LZW compressibility, and Ueli Maurer's universal statistical test.
YpFw is a frontend to ipfw and dummynet. It was developed to ease the setting and managing of ipfw rules and dummynet pipes on FreeBSD. It features a curses text interface, which allows the user to add/delete rules, update/clear rules counters, and add/delete/configure pipes. It is not meant as a replacement to ipfw; the user will need to understand ipfw and dummynet rules and syntax.
TPT is a template scripting language implemented in C++. The LibTPT parser transforms TPT templates into text. The parser, which integrates with your C++ code through a simple class API, is small and fast, focusing on functionality instead of rich feature sets. Uses include on-the-fly HTML and source code generation.