Technologies

Kernel.org

THE official website of the Linux kernel (trademark of Linus Torvalds), find all the news, releases, patches, updates etc by the Linux Kernel Organization, Inc...
The Linux kernel is free software, POSIX, established in 1991, maintained by a community of volunteer developers, it supports a large number of hardware architectures (embedded, PC, server, supercomputer).

The GNU Project, launched in 1984 to develop a complete Unix operating system-like, which is free software: the GNU system.
The GNU kernel was not finished, so GNU is usable in the Linux kernel. The combination of GNU and Linux is the OS GNU / Linux, used by millions of people.

Sometimes the combination is incorrectly called Linux. There are plenty of variants or "distributions" of GNU / Linux.
Gnu.org recommend GNU / Linux distributions are 100% free software, in other words, after the respect of freedoms.

The name "GNU" is an acronym for "GNU's Not Unix" and is pronounced "g-noo," in a syllable with no vowel sound between the g and n.

GNU
Gentoo

Gentoo Linux, a special flavor of Linux that can be optimized and customized according to your application and / or needs. Warning: extreme performance

Debian is a free operating system for your computer. Debian uses the Linux kernel (the heart of an operating system), but the most basic tools of the system come from the GNU Project, hence the name GNU / Linux.

Debian GNU / Linux is much more than a pure OS: it contains more than 25,113 packages, the packages are precompiled software for easy installation on your machine.

Debian
Apache

The Foundation Apache Software provides support for the Apache community. This is the most used web server worldwide. Reliable, robust and powerful it has already been adopted by millions of businesses.

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Php
MySQL The database open-source world's most popular.

Alternative to the widely used Sendmail program. Postfix is very powerful, easy to administer, and secure. It is now the default on many systems.

postfix
openssh

OpenSSH is the free version of SSH. OpenSSH encrypts all incoming and outgoing traffic (including passwords). It provides capabilities tunneling and different methods of authentication.

THE OpenOffice suite. Competitor number 1 after Microsoft, this tool has already been able to place the breasts of millions of individuals as professionals.

openoffice.org
Snort

Snort ® is an open source network intrusion prevention and detection system (IDS/IPS) developed by Sourcefire. Combining the benefits of signature, protocol and anomaly based inspection Snort is the most widely deployed IDS/IPS technology worldwide. With millions of downloads and over 225,000 registered users Snort has become the de facto standard for IPS.

PreludeIDS Technologies has witnessed rapid growth in a highly competitive market. We have successfully built up a broad client portfolio, including some of the world’s leading telecoms, banks and industrial groups as well as governmental agencies.
Our expertise lies in constructing comprehensive security systems for large and complex organizations. We optimize the potential of their security by customizing their outer-wall protection, supplying them with user-friendly in-house security management tools and in offering them our expert back-office services.

prelude-ids
Nagios Nagios is the leader in system, network, and application monitoring. It's the industry standard for good reason.

Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices.

Cacti
Samba

Samba is an Open Source/Free Software suite that has, since 1992, provided file and print services to all manner of SMB/CIFS clients, including the numerous versions of Microsoft Windows operating systems. Samba is freely available under the GNU General Public License.

CUPS is the standards-based, open source printing system developed by Apple Inc. for Mac OS® X and other UNIX®-like operating systems. Cups