PasTmon (Passive Application Response Time Monitor) passively monitors your application servers, measuring and reporting user response times, throughput and congestion. It currently works with HTTP, telnet, rlogin, rsh, FTP (control channel), SMTP, POP3, and IRC. Measurements are recorded in a PostgreSQL database and are presented graphically via a PHP Web front-end using R statistical analysis scripts to create the plots.
Rainbows! is an HTTP server for sleepy Rack applications. It is based on Unicorn, but designed to handle applications that expect long request/response times and/or slow clients. For Rack applications not heavily bound by slow external network dependencies, consider Unicorn instead as it simpler and easier to debug.
Ashd is an HTTP server that follows standard Unix philosophy for modularity. Instead of being a monolithic program with loadable modules, as most other HTTP servers seem to be, Ashd is simply a collection of much simpler programs, passing HTTP requests to each other using a simple protocol. The model also allows such handler programs to persist properly, so that, for example, session data can be kept in memory, connections to back-end services can be kept open, and so on.
iPfaces is a framework for simple creation of native, form-oriented network applications for mobile devices. The aim of the solution is to screen the programmer completely out from the mobile platform itself, and transfer the entire application logic to the central application server level. Developers with experience with one of the supported Web technologies (ASP.Net, Java, and PHP) may start working with iPFaces virtually immediately.
Arachnida is an embeddable Web server. It uses the OpenSSL library and consists of a small framework for networking that allows you to asynchronously accept and handle connections using a "new connection handler" to handle new connections and a "data handler" to handle incoming data. This makes it possible to add support for any TCP/IP based protocol by just adding a handler. A test suite is included.
mod_auth_pubtkt is a simple Web single sign-on (SSO) solution for Apache. It validates authentication tickets provided by the client in a cookie using public-key cryptography (DSA or RSA). Thus, only the login server that generates the tickets needs to possess the private key, while Web servers can verify tickets given only the public key. The implementation of the login server is left to the user, but an example and a library in PHP are provided with the distribution.