At Red Hat, we are continually seeking new ways to provide customers and developers who are interested in becoming Red Hat certified with new, more flexible ways to take exams. To that end, Red Hat Training is proud to announce an innovative new exam delivery method that provides candidates with greater convenience. Individual Exam Sessions, alternatives to the traditional classroom environment, are now available through personal testing stations and allow customers more choice in taking and scheduling many of Red Hat’s most popular exams. Watch the video to learn more, or visit www.redhat.com/individualexam
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by Bruce Wolfe (Red Hat)
Red Hat Messaging (RHM) is built on top of the AMQP wire-level protocol, and is designed to be inherently reliable. However, if you have the resources, you can make your messaging application more robust with the addition of High Availability (HA) Clustering.
To set up a simple cluster you will need to edit three files, and populate the same values across each RHM broker and/or RHEL host instance:
In the totem section add the network bind address (bindnetaddr), multicast address (mcastaddr), and multicast port (mcastport). For example, respectively: 192.168.10.0, 184.108.40.206, 5430
Continue reading “Tip/Trick of the Month: Using Highly Available Clusters with Red Hat Messaging”
by Malcolm Herbert (Red Hat)
This post originally appeared here on May 30, 2012, in the Guardian.
To make sure your organisation benefits from cloud computing, lay a solid foundation before making grand plans
Cloud computing is ubiquitous in technology conversations. It’s not just a buzzword, but a catalyst to a new wave of thinking. Cloud is still yet to show its full capabilities as the demands on the world’s datacentres continue to rise – open source and virtualisation are spear-heading this movement.
There are many opportunities for organisations to benefit from cloud computing and slot it into their overall IT strategy. However, instead of getting overwhelmed and “eating too many elephants” it’s important to prepare the groundwork for cloud and pace the business by laying a solid foundation.
Continue reading “Prepare the ground for the cloud”
by Guy Martin (Red Hat)
Open Source is not only a business model for Red Hat; it’s ingrained into the DNA of the company. Because of this, Red Hatters can generally count on their co-workers understanding both the fundamentals of open source, as well as the ethos and methodologies that go with it. However, within Red Hat Services, the consulting teams often get customer questions around these topics, or hear from employees of our customers who relay things they’ve heard regarding adoption of open source within their enterprise.
So, with apologies to David Letterman, I’d like to share the Top 10 Signs Your Enterprise Doesn’t ‘Get’ Open Source. While this is meant to be a somewhat humorous look at the topic, I also think it’s an informative way to talk about improving an enterprise’s effective use of open source technologies and methodologies. I’ll break down the list not by rank order, but by three areas that customers typically encounter when dealing with open source: Consumption, Collaboration, and Creation. I’ll also put in a few thoughts about how to address each of these from an improvement perspective.
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Based outside of Washington, DC, Spectrum Training Brokers is a centralized agent offering a single channel for purchasing computer and business skills training from hundreds of vendors nationwide. As an authorized training supplier of Red Hat, Spectrum has been offering Red Hat Training for over 6 years. Named Red Hat’s Training Partner of the Quarter for Red Hat’s fiscal fourth quarter of 2012 (December 2011 through February 2012), Spectrum had the highest sales and training bookings of any other North American Ready training partner. We recently chatted with Spectrum’s Nat Emery to get his thoughts about today’s training landscape today and where it may be headed tomorrow.
NOTE: The opinions, statements and other information included in this interview/blog are those of the author, and she/he is solely responsible for its content.
Who is getting trained these days?
The majority of my (personal) sector is government related. With the government mandating certifications for a lot of their contractors, that sector – federal contractors, federal government – is really making the investment and spending money on training. That’s not to say private industry is not doing it. To me, the federal sector are the ones driving the need where professionals must have to maintain those levels of certifications to stay in those contracts, and are putting a lot more emphasis on training.
Continue reading “An interview with Red Hat Training’s partner of the quarter”
by Pete Hnath (Red Hat)
Innovate or die. It’s the essence of what successful companies do, especially in the tech space. At Red Hat, there is ongoing innovation in every dimension of the business, with new products like CloudForms, new infrastructure like the Customer Portal and new metrics like Net Promoter.
The Curriculum team is similarly pushing to innovate with our course offerings and course delivery. In the last year we’ve completely changed the way Red Hat courses are taught to ensure the most hands-on experience possible. Gone are hour long, death-by-slide lectures. Students are actively engaged through multiple teaching approaches and near-continuous labs focused on solving problems rather than tools and technologies. Instructors are now armed with comprehensive guides with best practices on how to teach topics, resulting in across-the-board consistency and a more optimal student learning environment.
Continue reading “What’s new with Red Hat Training courses”
by Rich Raposa (Red Hat)
Drift is the unplanned or unintended changes that occur on a resource’s configuration. System administrators need the ability to track drift in their data centers to improve availability and reliability of their platforms, servers and applications.
Drift monitoring is a new feature in the latest version of the JBoss Operations Network 3.0 (JON). You can define a drift detection definition on the Drift page of a resource. Click the New button, assign your drift definition a name, a base directory, then select the files and/or folders to be monitored for drift. Wait a few minutes and JON will take the initial snapshot (snapshot 0) of your monitored files. Each time drift is detected, JON takes a new snapshot of the monitored files. Each snapshot has a number, and snapshots can be viewed in an intuitive, new view known as the snapshot carousel by double-clicking on the drift definition from the Drift page of the resource.
Continue reading “Tip/Trick of the Month: Monitoring Drift Compliance with JON”
by Wander Boessenkool (Red Hat)
Tuning systems can be a time consuming art. Not only does it involve extensive profiling of your systems, as well as continuous monitoring, but keeping tuning setting applied continuously can be quite a chore as well. Especially if the tuning needs of your systems change throughout the day.
Imagine a database system that is used to process orders from customers. In this specific system orders come in in bulk between 08:00 and 18:00, but the other 14 hours in a day and during the weekends the machine is mostly idling. We could tune this system for power efficiency, so as not to waste to much energy during the 118 hours a week it is doing almost nothing, or we could tune it for peak performance during the 50 hours a week the system is heavily utilized.
With a traditional setup switching between those two extremes would be either very cumbersome, with an administrator having to make those changes by hand, or it would require extensive scripting and testing to automate.
Continue reading “Tuning Your System With Tuned”