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Produced by the CentOS Project, the Community ENTerprise Operating System (CentOS) aims to provide a free enterprise class computing platform.  CentOS is a 100% compatible rebuild of  RedHat Enterprise Linux, with its changes mainly consisting of the removal of RedHat's branding and artwork.  The CentOS Project is not affiliated or financially supported by RedHat. It is widely regarded in the Linux community as it keeps up to date with RedHat's releases.

The distribution is targeted at the server market and is designed to provide a stable Linux solution for individuals and organizations which do not need commercial support.  CentOS is often provided as an available distribution by internet hosting companies.

The i386 version supports AMD (K6, K7, Thunderbird, Athlon, Athlon XP, Sempron), Pentium (Classic, Pro, II, III, 4, Celeron, M, Xeon), VIA (C3, Eden, Luke, C7) processors. The amd64 / x86-64 version works on AMD Athlon 64 & Opteron and Intel Xeon & EM64T processors.

CentOS 5.1 Key Facts

The CentOS Project
Free to download
2 December 2007
Installation Media:
CD (6 - i386  7 - x86-64), DVD (1), BitTorrent
Architectures supported:
Intel x86, Intel IA-64, PowerPC, AMD64, Itanium II, zSeries, S/390
Package Management:
Official Website:

GNOME 2.16.0
KDE 3.5.4
XOrg 7.1
Xfce -
OpenOffice 2.0.4
Evolution 2.8.0
Gimp 2.2.13
Python 2.4.3
Apache 2.2
PostgreSQL 8.1.9
GNU Compiler Collection 4.1.2


5.x (current release)
polishlinux, Enterprise Networking Planet, LinuxRonin, blogspot, Raiden's Realm,, Heitor Cardozo (in Portugese)
The Jem ReportNewsForgeLinuxPlanetSoftware in Review, ABC Linuxu (Czech)

Selected Websites

Other Official Websites
CentOS Wiki, CentOS Mailing Lists
CentOS Forums, CentOS Repository of packages, DAG RPM Packages, OpenFiler

Recommended Books

Last Updated Wednesday, March 12 2008 @ 02:31 PM EST

We have written a range of guides highlighting excellent free books for popular programming languages. Check out the following guides: C, C++, C#, Java, JavaScript, CoffeeScript, HTML, Python, Ruby, Perl, Haskell, PHP, Lisp, R, Prolog, Scala, Scheme, Forth, SQL, Node.js (new), Fortran (new), Erlang (new), Pascal (new), and Ada (new).

Group Tests
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Top Free Software
5 Office Suites
7 Document Processors
6 Lean Desktops
6 Desktop Search
9 Project Management
9 Groupware Apps
14 File Managers
10 Databases
21 Backup Tools
21 DVD Tools
21 Window Managers
21 Productivity Tools
9 Terminal Emulators
21 Financial Tools
21 Text Editors
21 Video Emulators
21 Home Emulators
42 Graphics Apps
6 CAD Apps
42 Scientific Apps
10 Web Browsers
42 Email Apps
12 Instant Messaging
10 IRC Clients
7 Twitter Clients
12 News Aggregators
11 VoIP Apps
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42 Best Games
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21 More Games
21 Notable Games (1)
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8 ASCII Games
9 Educational Games
42 Audio Apps
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6 Screencasting Apps
80 Security Apps
9 System Monitoring
6 Family History Apps
11 PDF Tools
6 Music Servers
6 Collection Managers
7 Calculator Apps
8 Geometry Apps
Free Console Apps
14 Multimedia
8 Compilers
9 IDEs
9 Debuggers
7 Revision Control Apps
6 Doc Generators
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42 Games
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14 Wiki Engines
8 Blog Apps
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5 Human Resource Apps
10 ERP
10 CRM
6 Data Warehouse Apps
8 Business Intelligence
6 Point-of-Sale

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