Gspoof is a GTK+ program written in the C language which makes it easier and more accurate to build and send TCP packets with or without a data-payload. It's possible to modify TCP/IP fields and also ethernet header working to Link Level. You can send one or more packets together. It runs also in "console mode" without X and so you can compile it without GTK+.
changedfiles is a framework for filesystem replication, security monitoring, and/or automatic file transformations--essentially any application where you'd poll files or directories and either do something to them or send them somewhere else (or both). The difference is that the kernel tells you when they change instead of you having to poll. It's an easy real time FTP push mirror to one or multiple sites. It's also a full fledged MySQL client, so you can do realtime database operations (for example, batch imports). It consists of two parts: a kernel module (works with Linux kernel version 2.4) which reports to a device whenever a file on the filesystem changes, and a daemon which runs in user space and can be configured to do almost any action when a change to a file matching the one of the patterns it looks for is reported. The kernel module is SMP safe and has been tested on Intel, PowerPC, and Alpha.
Invicta is an open-source build management tool. Using simple project definition files, it generates powerful build scripts (Apache ANTs) while hiding their complexity. Furthermore, Invicta is a modular framework that allows advanced developers add their own customized types of components, which means writing once ANT code that can later be used by all developers in their project or company simply by specifying the new type name.
NetInstaller lets you create setup wizards for Web applications written in PHP. Users only have to upload two files; everything else will be decompressed online on the server, created, and configured. This eliminates the need to perform tedious permission changes (with chmod) or to upload of hundred of files in order to install a PHP application onto a Web server.
Cvs-Brancher establishes a tagged branch in a CVS module and schedules a merge and build to occur at a later date/time. It might be used to roll out Website changes at odd hours, such as posting a press release in time for the start of the business day on the east coast, or to roll out cfengine changes to a data center during the night, to minimize the impact of downtime.