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fedora linux

The pydf command displays the amount of used and available space on your file systems, just like df command, but in colors. The output format is completely customizable.
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Boxes command is a text filter and a little known tool that can draw any kind of ASCII art box around its input text or code for fun and profit. You can quickly create email signatures, or create regional comments in any programming language. This command was intended to be used with the vim text editor, but can be tied to any text editor which supports filters, as well as from the command line as a standalone tool.
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Download Fedora 16 CD / DVD ISO

Fedora Linux version 16 (code name "Verne") has been released and available for download ( jump to download link ). Fedora Linux is a community-based Linux distribution which is sponsored by Red Hat, Inc. This release is dedicated to Dennis Ritchie, who co-invented Unix and the C language. Fedora is considered as the third most popular cutting edge distro, behind Ubuntu and Mint Linux for desktop and laptop usage.
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Download Fedora 15 CD / DVD ISO

Fedora Linux version 15 has been released and available for download ( jump to download link ). Fedora Linux is a community-based Linux distribution which is sponsored by Red Hat, Inc. Fedora is considered as the second most popular cutting edge distro, behind Ubuntu Linux for desktop and laptop usage. The new version comes with several new features such as special focus on desktops, developers, virtualization, security and system administration.

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Download Fedora 14 CD / DVD ISO

Fedora Linux version 14 has been released and available for download ( jump to download link ). Fedora Linux is a community-based Linux distribution. Fedora is sponsored by Red Hat, Inc. Fedora is considered as the second most popular distro, behind Ubuntu Linux for desktop and laptop usage.
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Wikipedia is ditching out a mix of Red Hat and Fedora for Ubuntu Linux. Wikipedia has 10 million articles in 250 languages and it is one of the 10 most visited websites in the world.

One of the reasons for this switch was that they did not want to pay Red Hat for support on their provided software solutions. Ubuntu Linux get updated frequently and nothing can beat apt package manger.

According to Vibber, CTO of the Wikimedia Foundation:

We had a mix of things: some Red Hat 9, some Fedora -- several different versions. The group used a custom-scripted installation procedure, but found that having a multitude of versions was more difficult to maintain for its small five-person IT staff around the world. The move to all-Ubuntu was primarily done with the goal of "making our own administration and maintenance simpler. We decided that we want to standardize on something.

Last week one or more of Red Hat's servers got cracked. Now, it has been revealed that both Fedora and Red Hat servers have been compromised. As a result Fedora is changing their package signing key. The intruder was able to sign a small number of OpenSSH packages relating only to Red Hat Enterprise Linux 4 (i386 and x86_64 architectures only) and Red Hat Enterprise Linux 5 (x86_64
architecture only).

This update has been rated as having critical security impact. If your Red hat based server directly connected to the Internet, immediately patch up the system.

From the RHN announcement:

Last week Red Hat detected an intrusion on certain of its computer systems and took immediate action. While the investigation into the intrusion is on-going, our initial focus was to review and test
the distribution channel we use with our customers, Red Hat Network (RHN) and its associated security measures. Based on these efforts, we remain highly confident that our systems and processes prevented the intrusion from compromising RHN or the content distributed via RHN and accordingly believe that customers who keep their systems updated using Red Hat Network are not at risk. We are issuing this alert primarily for those who may obtain Red Hat binary packages via channels other than
those of official Red Hat subscribers.

Following products are affected:
=> Red Hat Desktop (v. 4)
=> Red Hat Enterprise Linux (v. 5 server)
=> Red Hat Enterprise Linux AS (v. 4)
=> Red Hat Enterprise Linux AS (v. 4.5.z)
=> Red Hat Enterprise Linux Desktop (v. 5 client)
=> Red Hat Enterprise Linux ES (v. 4)
=> Red Hat Enterprise Linux ES (v. 4.5.z)
=> Red Hat Enterprise Linux WS (v. 4)

How do I patch up my system?

Login as the root and type the following command:
# yum update

This is the main reason I don't use Fedora in a production.

More information:

Now, Red hat did not disclosed how the hell attacker got in to the server. I'd like to know more about that - was it 0 day bug or plain old good social engineering hack?

Updated for accuracy - CentOS is not affected by this bug, see the comments below.