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+.
gGo is a Go board, SGF editor, client for the Internet Go Server, and an interface for playing with GNU Go. gGo is written in Java and available for Linux, OS X, OS/2 and Windows. gGo is distributed free of charge. Go is an ancient boardgame, very common in Japan, China, and Korea.
nefu (network fidelity utility) is a Unix daemon that monitors services over the network. It uses a "no false alarms" fault verification algorithm, and understands network dependancies. Natively-monitored protocols include ICMP echo (ping), SSH, IPP, DNS, HTTP, POP, NTP, IMAP, SMTP, and LDAP, as well as having facilities to execute external programs. Status pages are available via finger or the Web.
kdrill helps people learn Japanese 'Kanji' characters. Its includes a multiple-choice Kanji quiz program that helps people learn Japanese characters with different guess formats and history options. It also has a suite of dictionary lookup functions. Words can be found using a variety of methods including Romaji, SKIP, four-corner, cut-n-paste, radical lookup, and English search.
tk150 is a multiplatform programming and cloning utility for the portable Standard (Yaesu) VR-150 receiver. It can read the memory image from the radio, display the information graphically, and save it to a file. Memory channels may be exported to or imported from a .CSV (comma-separated values) file.
BitlBee allows users to talk to people on the major instant messaging and microblogging networks (including MSN, Google Talk, AIM, and Twitter) from within any IRC client by emulating an IRC server. Virtual channels are created with all of the user's contacts in them, who can be talked to in the channel or in a query. Also, one can participate in group chats and chat rooms like they were normal IRC channels.
rarch (Removable Archive) is a program that keeps a database of archives on removable media (i.e., CDs). It can be used to keep an archive of backup CDs, etc. It comes with a search function, easy archive creation functionality, and other archive management functions. It does not create and manage the archives themselves; it only keeps a database of what files are on what archives, so that they can be searched.