Protect hosts from brute-force attacks against SSH and other services

https://www.sshguard.net/

State Threads Library for Internet Applications

http://state-threads.sourceforge.net/

Library that supports startup notification spec from freedesktop.org

https://www.freedesktop.org/wiki/Software/startup-notification/

Monospace font created for the French magazine Etapes

https://raphaelbastide.com/steps-mono

OpenType Unicode fonts for Scientific, Technical, and Math texts

http://www.stixfonts.org/

Command-line utility that pipes video streams

https://streamlink.github.io/

Advanced IP/IPv6 subnet calculation and discovery

http://www.seccuris.com

Version control system

http://subversion.apache.org/

Version control system, long-time-support version

http://subversion.apache.org/

Allow others to run commands as root

https://www.sudo.ws/

Font for programmers and command line users

https://www.kutilek.de/sudo-font

SuiteSparse is a set of packages for sparse matrices calculation

http://faculty.cse.tamu.edu/davis/suitesparse.html

Super Tux is a side-scroller similar to Super Mario Brothers

http://supertuxproject.org/

Tool similar to Gloobus Preview that provides quick file previews

http://www.ubuntugeek.com/gnome-sushi-quick-previewer-for-nautilus.html

X11 font designed to be small yet easily read

http://www.goof.com/pcg/marc/suxus.html

Low level console graphics library

http://www.svgalib.org/

Summarizes and manages differences between local files and Subversion

http://www.incava.org/projects/svndelta/

Gnome swell-foop

https://wiki.gnome.org/Swell%20Foop

Generate wrappers for calling C/C++ code from other languages

http://www.swig.org/

Generate wrappers for calling C/C++ code from other languages

http://www.swig.org/

Lightweight image viewer

https://github.com/muennich/sxiv

Basic Latin, Greek, Cyrillic and many Symbol blocks of Unicode

http://users.teilar.gr/~g1951d/

Mouse and keyboard sharing utility

https://symless.com/synergy

Scriptable database and system performance benchmark

https://github.com/akopytov/sysbench

Helps to install application configuration files

http://www.Courier-MTA.org/sysconftool/

Network tool designed for high performance and accurate monitoring

http://puck.nether.net/sysmon/

Utility to get or set rc.conf(5) values

http://druidbsd.sourceforge.net/

Backend system admin scripts for gnome-system-tools

http://www.gnome.org/projects/gst/

System Preferences application for GNUstep

http://www.gnustep.org/experience/systempreferences.html

Lossless compression library for scientific data

https://support.hdfgroup.org/doc_resource/SZIP/

Type 1 font rasterization library for Unix/X11

https://www.t1lib.org/

Six utilities for manipulating t1 fonts

https://www.lcdf.org/~eddietwo/type/

Library for manipulating ID3 tags and Ogg comments

http://taglib.github.com/

Gnome tali

https://wiki.gnome.org/Apps/Tali

IRC client for GNUstep

http://gap.nongnu.org/talksoup/

Hierarchical pool based memory allocator

https://talloc.samba.org/

Hierarchical pool based memory allocator

http://talloc.samba.org/

Monospaced bitmap font for programming

http://www.fial.com/~scott/tamsyn-font/

Monospaced bitmap font forked from Tamsyn

https://github.com/sunaku/tamzen-font

Online encrypted backup service (client)

http://www.tarsnap.com/

Library that provides thread building blocks (Legacy Version)

https://threadingbuildingblocks.org

Shell wrapper for tclsh (Tcl)

Tool Command Language

http://www.tcl.tk/

Collection of utility modules for Tcl

http://tcllib.sourceforge.net/

Tool to replay saved packet capture files

https://github.com/appneta/tcpreplay

Packet sniffer which displays TCP information like top(1)

http://BSDforge.com/projects/net-mgmt/tcptrack/

Set of configuration scripts for the TCSH shell

http://tcshrc.sourceforge.net/

Trivial Database

https://tdb.samba.org/

Trivial Database

http://tdb.samba.org/

Toolkit for converting data between 8-bit legacy encodings and Unicode

http://scripts.sil.org/TECkit