The Shoreline Firewall, more commonly known as "Shorewall", is a Netfilter
(iptables) based firewall that can be used on a dedicated firewall system,
a multi-function gateway/ router/server or on a standalone GNU/Linux system.

Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX,
designed especially for e-mail scanning on mail gateways. It provides a
number of utilities including a flexible and scalable multi-threaded
daemon, a command line scanner and advanced tool for automatic database
updates. The core of the package is an anti-virus engine available in a
form of shared library.

Here is a list of the main features:

* command-line scanner

* fast, multi-threaded daemon with support for on-access scanning

* milter interface for sendmail

* advanced database updater with support for scripted updates and
digital signatures

* virus scanner C library

* on-access scanning (Linux® and FreeBSD®)

* virus database updated multiple times per day (see home page for
total number of signatures)

* built-in support for various archive formats, including Zip, RAR,
Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS and others

* built-in support for almost all mail file formats

* built-in support for ELF executables and Portable Executable files
compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack
and obfuscated with SUE, Y0da Cryptor and others

* built-in support for popular document formats including MS Office and
MacOffice files, HTML, RTF and PDF

Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX,
designed especially for e-mail scanning on mail gateways. It provides a
number of utilities including a flexible and scalable multi-threaded
daemon, a command line scanner and advanced tool for automatic database
updates. The core of the package is an anti-virus engine available in a
form of shared library.

Here is a list of the main features:

* command-line scanner

* fast, multi-threaded daemon with support for on-access scanning

* milter interface for sendmail

* advanced database updater with support for scripted updates and
digital signatures

* virus scanner C library

* on-access scanning (Linux® and FreeBSD®)

* virus database updated multiple times per day (see home page for
total number of signatures)

* built-in support for various archive formats, including Zip, RAR,
Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS and others

* built-in support for almost all mail file formats

* built-in support for ELF executables and Portable Executable files
compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack
and obfuscated with SUE, Y0da Cryptor and others

* built-in support for popular document formats including MS Office and
MacOffice files, HTML, RTF and PDF

LuaFileSystem is a Lua library developed to complement the set of functions related to file systems offered by the standard Lua distribution.
LuaFileSystem offers a portable way to access the underlying directory structure and file attributes.

awesome is a highly configurable, next generation framework window manager for X. It is very fast, light and extensible.

It is primarly targeted at power users, developers and any people dealing with every day computing tasks and want to have fine-grained control on its graphical environment.