C-ICAP Classify is a module that allows classification (labeling) of Web pages, images, and soon video based on content. Labels are placed in HTTP headers. Any PIC-Label META tags are exported into HTTP headers. This allows for creation of very flexible filters according to rules defined by the user, using the ICAP enabled proxy's ACLs. It is not a URL filter, so implementing it with sslBump or similar proxy technologies makes it very difficult to bypass. Text classification is done using Fast Hyperspace (based on Hyperspace from CRM114) and/or a Fast Naive Bayes. Image and video (when implemented) use haar feature detection from the OpenCV library.
ashttpd was originally a testbed for a kernel async-sendfile patch. Today, it's just another Web server for serving static content rapidly. It differs from its competitors by storing its webroot in a database, which provides a 50% performance increase over using the operating system's VFS. It also allows precalculation of strong cache-validators (ETags).
blists is a Web interface to mailing list archives. It works off indexed mbox files. It includes two programs: bindex and bit. bindex generates or updates the index file (incremental updates are supported). bit is a CGI/SSI program that generates Web pages on the fly. Both programs are written in C and are very fast.
SparForte is a scripting language for large projects requiring reliable, scalable code, reduced maintenance time, and strong bug elimination requirements. It is targeted for programmers interested in quickly writing reliable software, educators wanting to teach disciplined programming skills, and advocates of the Ada/Spark programming languages.
ipredirectd has functionality similar to netcat but with some extra features. Multiple clients and full logging of network traffic are supported. It can also manipulate incoming and outgoing text traffic. Manipulation is based on pattern files that support regular expressions. This feature is probably most useful with HTTP. The software is smart enough not to apply regular expressions on non-HTML data by reading the content-type header. One possible usage is redistribution of pre-authenticated Web pages in foreign domains by replicating authentication and session cookies.
uNabto is a small UDP-based NAT and firewall traversing virtual Web server. It is useful for very small resource limited embedded systems. It works by installing a free Nabto protocol plugin in your browser which, in combination with a "HTML-device driver" definition file, communicates and presents the user with a nice Web based GUI.