Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis. Development has been moved to GitHub, https://github.com/Ettercap/ettercap
Bandwidth Monitor NG is a small and console-based live network and disk-io bandwidth monitor for Linux, BSD, Solaris, Mac OS X and others. features: output of KB/s, Kb/s, packets, errors, average, max and total sum; in curses, plain console, CSV or HTML MOVED TO: https://github.com/vgropp/bwm-ng
pork, oidentd, iplog and ocd
Very fast cross-platform php script that describes the host server in extreme detail, giving information such as ram usage, disk space, raid arrays, hardware, network cards, kernel, os, samba/cups/truecrypt status, temps, disks, and much more. Latest code is here: https://github.com/jrgp/linfo
"Aubit 4GL" is a project to make GPL, OpenSource, Informix-4GL compatible compiler, and continue to extend functionality needed to write most efficient and productive business related, database oriented applications. See "Home Page" link for more.
PWman is a text-based application for securely storing and managing passwords, using a gpg encrypted xml file, based on the ui design of abook (http://abook.sourceforge.net). PWman works on Linux, and should also run on most other UNIXes(untested).
PFTP is a portable FTP client, with many useful features, such as FXP, SSL and TLS support. PFTP is aimed at being a set of two libraries and a diversity of user interfaces, for maximal portability.
Satellite Prediction Server and Clients
A console-based monitoring tool for SETI@home.
ptyaim is a simple curses client for AOL Instant Messenger, ICQ, and IRC. It runs on many Unix-like systems, and Win32.
Text-based Intuitive Personal Information Organizer. A completely console oriented PIM that is compatible and can seamlessly operate with Apple iCal and Mozilla Calendar.