GNU GLOBAL source code tag system is a source code tagging system which works the same way across diverse environments (Emacs, vi, less, bash, Web browser, etc.). It can locate objects in source files and move there easily. It is useful for hacking a large project containing many subdirectories, many #ifdefs, and many main() functions. It is similar to ctags or etags, but is independent of any editor.
Lbzip2 is a parallel, SMP-based, bzip2-compatible compression utility, with a commandline resembling that of the original bzip2. It is usable both on its own and as a filter passed to GNU tar with the "--use-compress-program" option. It uses Gnulib, and its building and testing process is managed by the GNU build system. Starting with release 2.0, lbzip2 is independent of libbz2 and features yambi, an independent BWT compression stack with improved speed and robustness.
seaLISP is a Lisp interpreter with as many bells and whistles as possible but with absolutely no dependencies apart from the C++ standard library. The garbage collector, the computer algebra library, and all other components are written from scratch to be portable. It also has a PSP port with some primitives for graphics.
exceptions4c is a tiny, portable framework that brings the power of exceptions to your C applications. It provides a simple set of keywords (macros, actually) which map the semantics of exception handling you're probably already used to: try, catch, finally, throw. You can write try/catch/finally blocks just as if you were coding in Java. This way you will never have to deal again with boring error codes, or check return values every time you call a function.
TCPWebLog is a system that collects and aggregates Apache and Varnish Web server logs from multiple Linux computers. It uses a simple "client" program that pipes logs to a central server over a TCP connection, and a "server" program that receive the logs and quickly aggregates or splits them.
LogPipe is a module that extends the default PHP error handling function. It allows you to send logs to syslog, or pipe them to an external program. It extends a standard log line to contain the IP address and host name of the server under which the current script is executing, and the client IP address. The IP address and host name can be used by an external program to split or aggregate logs based on the virtual host. This module has been designed mainly as a complement for the TCPWebLog project.
RackMap is a Web-based datacenter management tool. It was designed to help organisations catalog and manage datacenter assets such as racks, servers, routers, and switches. It allows you to catalog hardware location and cabling information, export data in various formats including PDF, generate bulk configuration scripts, and remotely control some devices.
Kolab is a groupware system that provides a comprehensive and flexible solution for workgroups. Email, contacts, and group calendars can be managed via the Web, Windows/Outlook, and Linux/KDE. It supports offline synchronization and full seamless support of mixed client environments because the Kolab-XML storage format is fully open and avoids MAPI/TNEF.