Archive for the 'Red Hat Enterprise Linux' category

Video: Open source government

Download this video: [Ogg Theora]

Open source is answering the call at government agencies on all levels as they look for opportunities to carve out costs and improve security, transparency, public participation, and collaboration. Why? Open source is stable, trustworthy, and secure, and Red Hat solutions are being used across government agencies to create efficiencies, eliminate vendor lock-in, meet mission-critical IT demands, and improve service delivery.


Red Hat and Intel: Smart processors, virtualization boost efficiency and performance

On Monday March 30, Intel announced the availability of their much anticipated new line of processors, the Intel® Xeon® Processor 5500 series–nicknamed Nehalem.

Red Hat, a long-time partner of the market-leading chip maker , collaborated on the chip’s debut, testing and optimizing the recently released Red Hat® Enterprise Linux® 5.3 on the new processor.

Changes include a new processor architecture, platform architecture, memory subsystem, I/O subsystem, and options (including SSD and 10GbE).

So what’s the big deal? Why all the fuss? Here’s just a few of the improvements wrought by the combination of Intel’s processing power and Red Hat advancements in performance and efficiency. » Read more


Risk report: Four years of Red Hat Enterprise Linux 4

Red Hat® Enterprise Linux® 4 was released on February 15th, 2005. This report takes a look at the state of security for the first four years from release. We look at key metrics, specific vulnerabilities, and the most common ways users were affected by security issues. We will show some best practices that could have been used to minimise the impact of the issues, and also take a look at how the included security innovations helped.

This report is an update to the three-year risk report published in Red Hat Magazine in February 2007.

» Read more


Enterprise Linux 5.2 to 5.3 risk report

Red Hat Enterprise Linux 5.3 was released today, around 8 months since the release of 5.2 in May 2008. So let’s use this opportunity to take a quick look back over the vulnerabilities and security updates we’ve made in that time, specifically for Red Hat Enterprise Linux 5 Server. » Read more


Introducing Pylons: A hacker’s web framework

Python has a good reputation for tasks like systems programming, network programming, and scripting, but Python for the web is becoming red hot. Part of this has to do with the very popular web framework Django, that was developed at a newspaper to help quickly create Content Management Sites. . Another reason is that Google App Engine–Google’s Cloud Computing offering for developers–only exposes a Python API.

If you are new to Python Web Development, then I’d recommend Django, as it is ideal for building CMS-type applications, social networking websites, and blogs. On the other hand, If you want a hacker’s framework, you might want to give Pylons a look.

Please note: By hacker, I am referring to the kind of hacker Eric Raymond refers to when he writes, “Becoming a hacker will take intelligence, practice, dedication, and hard work. Therefore, you have to learn to distrust attitude and respect competence of every kind. Hackers won’t let posers waste their time, but they worship competence — especially competence at hacking, but competence at anything is valued.”

Ok, so what problem does a hacker’s framework solve that a framework like Django doesn’t? According to some of the Pylons developers, their framework is geared to solve 80/20 problems. Most people—80% of people–want to build blogs, and CMS-type applications. And for that 80%, Django works just great. Of course, the other 20% is where Pylons comes in to play as a “hacker’s framework.” » Read more


Adding new functions to Red Hat Enterprise Linux: A process primer

People often wonder how to get new capabilities—new packages, new features in existing packages, or even bug fixes—included in Red Hat Enterprise Linux. The process for doing so is straightforward, but may be foreign to those with a background in traditional software products.

To summarize, the process is:
1)Get the new code accepted upstream.
2)Get it included in Fedora.
3)Get it included in Red Hat Enterprise Linux.

Although this article focuses on the Linux kernel, the steps apply to all Red Hat Enterprise Linux components and packages.

The key element in the process is that Red Hat tracks upstream. This means that Red Hat works closely with the open source community. Any new features must first be accepted upstream before they’re added to Red Hat Enterprise Linux. » Read more


Video: Spotlight on Extra Packages for Enterprise Linux (EPEL)

Download this video: [Ogg Theora]
Video by Islam Elsedoudi.
Produced by Kim Jokisch and Jesse Paddock.

We here at Red Hat are pleased to bring you a brand new set of videos aimed at showing off the latest and greatest enhancements in our technologies–featuring the very people who helped create them in the first place. The “SPOTLIGHT ON” series highlights the ways in which collaboration drives innovation by looking at projects that have been improved by community input. In our first installment, we track down Red Hat’s own Karsten Wade and Stephen Smoogen from the University of New Mexico to talk about Extra Packages for Enterprise Linux (EPEL), the Fedora-sourced repository of add-on packages for Red Hat Enterprise Linux. They discuss how EPEL is a tool for user-driven innovation that comes from and benefits enterprise customers with more stable code and lower business costs.


Q and A: MRG (Messaging, Real-time, and Grid)

This past winter, Red Hat announced the release of a product called MRG–a computing platform that features high-speed messaging and allows high-throughput computing, realtime transactions, and workload management. Not sure what all that means? We weren’t either. So we contacted Bryan Che, the project manager for MRG, to see if we couldn’t get a few questions answered. He obliged, and so we bring you the MRG QandA. Still have questions of your own you want answered? Comment and let us know…

How did MRG come about as a project/product line?

Red Hat has been working on the technologies behind MRG for quite some time–each of the components in MRG has had years of development. For example, Red Hat has been working on realtime technologies in the upstream kernel community for over seven years. Messaging has had a
similarly lengthy development history. Condor, the technology behind our grid scheduler, started development in the 1980’s!

We started work on these technologies because we saw the need for these capabilities, even if we didn’t know when or how we were going to bring
these technologies to market yet. For example, messaging is at the heart of enterprise computing. We had needs for messaging infrastructure at Red Hat–for building out our own capabilities around things like virtualization management. Many of Red Hat’s customers were asking us to provide an open source messaging offering. So, we started working on the AMQP specification and our messaging implementation, even though we didn’t know it was going to end up in something called “Red Hat Enterprise MRG”. » Read more


Tips and tricks: Where is the kernel-source package for Red Hat Enterprise Linux 4?

Unlike Red Hat Enterprise Linux versions 2.1 and 3, there is no kernel-source package in the Red Hat Enterprise Linux 4 distribution. It was deemed redundant to provide a kernel-source package and a kernel .src.rpm package at the same time. Users that require access to the kernel sources can find them in the kernel.src.rpm file.

In Red Hat Enterprise Linux 4, The kernel-devel package includes the kernel headers files and you no longer require the kernel source package to build a third party kernel module. To install the kernel-devel package run the following command as root user in a terminal:

#up2date kernel-devel

A full source tree is not required in order to build modules against the current kernel you are using. You can simply point your Makefile to /lib/modules/`uname -r`/build. A more detailed explanation can also be found in the Release Notes. » Read more


What’s next in Red Hat Enterprise Linux (part 2)

Here’s the final installment of Bill Nottingham’s series based on the talk he gave at this year’s Red Hat Summit. Find out about the latest and greatest Fedora™ developments… and the future of Red Hat® Enterprise Linux® from this experienced engineer. Missed the first part? Catch up in the archives.

Network handling

Another area that’s shown a lot of improvement since Enterprise Linux 5 is networking, especially for desktop and laptop computers. In Fedora 9, we’ve greatly enhanced NetworkManager, and as a result, have switched to NetworkManager by default for all installs. Some of the features we’ve added to NetworkManager include:

  • MobileBroadband support – NetworkManager now supports configuring access via GSM and CDMA cards for even greater connectivity options.
  • System configuration support – NetworkManager now reads my system configuration , as configured via anaconda or system-config-network. This allows support for things such as static IPs.
  • Multiple device support – NetworkManager will automatically connect to both wireless and wired devices simultaneously. This means that if I disconnect the wired device, I’ll have seamless access through my wireless device, instead of having to wait for it to associate and get an IP address.
  • Connection editing – NetworkManager also includes a connection editor. With this, I can easily configure my wireless network, my mobile broadband connection, or even 802.1x for my wired connection.

» Read more