RenderProto protocol headers

https://www.freedesktop.org/wiki/Software/xlibs/

Resource extension headers

https://www.freedesktop.org/wiki/Software/xlibs/

A fast redirector and access controller for squid

http://www.bsdnexus.com/retsina/index.htm

Uncompile an rgb color-name database

https://gitlab.freedesktop.org/xorg/app/rgb

Convert .rpm files to cpio format

Restricted Secure SHell only for sftp or/and scp

http://www.pizzashack.org/rssh/index.shtml

Sample implementation of a Remote Start client

Network file distribution/synchronization utility

http://rsync.samba.org/

Ruby interface to Oracle Berkeley DB revision 2 or later

https://github.com/knu/ruby-bdb

Ruby interface to Berkeley DB revision 1.8x with full feature support

http://moulon.inra.fr/ruby/bdb1.html

Ruby tool for converting wiki-like markup

http://deplate.sourceforge.net

Binary data dumper module for Ruby

http://www.geocities.co.jp/SiliconValley-Oakland/2986/

An object-oriented interpreted scripting language

http://www.ruby-lang.org/en/

Low memory usage xterm replacement that supports color

Shared lib from the samba package

http://www.samba.org/

NetBIOS Name lookup tool

http://www.samba.org/

nsupdate utility with the GSS-TSIG support

https://www.isc.org/software/bind

Scan_ffs recovers lost disklabel

ANSI C version of the SciMark2 benchmark

https://math.nist.gov/scimark2/download_c.html

Build tool alternative to make

https://scons.org/

Tiny shell that only permits scp and sftp

https://github.com/scponly/scponly/wiki

Converts the output of "vidcontrol -p" to text

Multi-screen window manager

http://www.gnu.org/software/screen/

Small and lightweight screen(1) wrapper

https://sourceforge.net/projects/screenie/

Various X related scripts

https://cgit.freedesktop.org/xorg/app/scripts

ScrnSaver extension headers

http://www.freedesktop.org/wiki/Software/xlibs

"Simplified" DocBook XML DTD

http://www.oasis-open.org/docbook/xml/simple/

A utility for generating secure passphrases

http://www.core-dump.com.hr/?q=node/28

Extensive german HTML reference

http://www.selfhtml.org/

Serf HTTP client library

https://serf.apache.org/

Manage utmp/wtmp entries for non-init X clients

Set the keyboard using the X Keyboard Extension

https://www.freedesktop.org/Software/xorg

Set of utilities that send SCSI commands to devices

http://sg.danny.cz/sg/sg3_utils.html

Generates groff and HTML from linuxdoc and docbook SGML documents

Interoperability between desktops and collaborative environments

http://oscaf.sourceforge.net

MIME types database from the freedesktop.org project

https://www.freedesktop.org/wiki/Software/shared-mime-info/

Generic script compiler

http://www.datsi.fi.upm.es/~frosal/frosal.html

HTTP regression testing and benchmarking utility

http://www.joedog.org/JoeDog/Siege

Small (150k), fast, perl-based IRC client

http://www.iagora.com/~espel/sirc.html

SixXS IPv6 TIC+ tunnel broker heartbeat client

http://www.sixxs.net/tools/aiccu/

Fully automated, active web application security reconnaissance tool

http://code.google.com/p/skipfish

SIP scanner and identifier

http://www.wormulon.net/

Samba-LDAP management and support tools

https://gna.org/projects/smbldap-tools/

Session Manager Proxy

Fast compressor/decompressor library

http://google.github.io/snappy/

Softflowd is flow-based network traffic analyser with export

http://www.mindrot.org/softflowd.html

Highly efficient mail filter for identifying spam

http://spamassassin.apache.org/

Traps spammers with a very slow smtp-login and return 4xx error

http://freebsdspamd.sourceforge.net/

Spawns fastcgi applications

http://redmine.lighttpd.net/projects/spawn-fcgi

Sphinx Full-Text Search Engine

http://sphinxsearch.com/