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Below are a series of blogposts by Oracle ACE Director Johan Louwers. He is on a roll, and hope gives you inspiration to share your knowledge base on Oracle Systems products.

Johan Louwers.jpg


Oracle Linux and opcinit for package installation

Wondering how you can dynamically install additional packages to Oracle Linux when deploying an Oracle Linux instance on the Oracle cloud? In a recent blogpost Johan Louwers explains how you can use the packages option in the userdata section of an orchestration for the Oracle cloud. This makes deploying Oracle Linux even more easy to do on the Oracle cloud.


Want to use opcinit on Oracle Linux?

In need to use opcinit when developing a Oracle Linux template for the Oracle Public Cloud? You can find more information about how to obtain it in this blogpost by Johan Louwers on his personal blogpost.


Bash function to check installed packages

When scripting in bash to ensure you can do installations quite automatic you sometimes need a function to check if a package is installed. An example of this is provided in this blogpost by Johan Louwers


Checking IPMI HOST_LAST_POWER_STATE from the Oracle Linux CLI

Need to check how your system will behave after a powerfailure and need to check if you configured IPMI settings correct? Read the latest on blogpost


Using SQlite on Oracle Linux

SQlite is a small database solution shipping by default with Oracle Linux. Read how to use it in this blogpost by Johan Louwers


InfiniBand fabric error counters via Oracle Linux

Need to check your InfiniBand fabric error counters directly from bash on Oracle Linux, read this blogpost from Johan Louwers to find out how to do it


Installing #elasticsearch on Oracle #Linux just became even more easy

Johan Louwers shared some of his installation scripting which makes it even more easy to install and use Elasticsearch on Oracle Linux. You can find out more at the blogpost  and the script is also available on github


Here in OTN (Oracle Technology Network) land we curate and create technical content, including videos.

My Community Manager colleagues Bob Rhubart, Laura Ramsey, Stephen Chin, Yolande Poirier and myself create various forms of Community Casts.

Bob, or as I like to call him Bob-San (as in Mr. Miyage in the Karate Kid) is a wise sage who conducts interviews with precision, personality and awesome editing and special effects. I don't know if he will be nominated for an Academy Award, but he sure deserves an Oracle Oscar. Bob does 2 Minute Tech Tips, and more.

Below are examples of a couple of different formats Bob uses. One is where Bob gives the guest 2 minutes on a particular tech topic and he stands there literally with a stopwatch. If you're not in that magic two minute window, you get to go for another take, almost like Hollywood.


In a different format, he segues between the speaker and slides.



What is so special about 2 minutes. John Louwers, Oracle Ace Director in this blog post did a quick study in terms of how long content should be to be attractive to viewers. It ties in with Bob's theme of doing shorter videos.

Do you agree? As we go forward on the OTN Systems Hub and associated video channel, I am trying to explore new ways of doing videos that I hope will be more engaging. I would love to get your feedback for your preference on videos, both length and style in terms of format. Bob deserves the Oscar, but I need to your help to get nominated. Thoughts?

Facebook released an internal project to the opensource community.

The osquery tooling from Facebook is to acquire low level information about your operating system and store it in a local database to be analyzed by using SQL statements.

More information on how to install osquery on Oracle Linux is provided by Johan Louwers on his blog.

You can find the blogpost at

In need to use opcinit when developing a Oracle Linux template for the Oracle Public Cloud?

You can find more information about how to obtain it in this blogpost by Johan Louwers on his personal blogpost.

What do James Bond, Lawrence Lawrence Livermore Labs and IT Systems Architects have in common?

Photo  by Mike Mozart available under a Creative Commons Attribution-license.jpg

Photo  by Mike Mozart available under a Creative Commons Attribution-license


Yes, keeping the nation safe, our secrets in, and the bad guys out. In this candid interview we meet Philip Adams, Senior Systems Architect at Lawrence Livermore Labs talking about IT, Security, and more.

We learn about the National Ignition Facility team and the world’s largest and highest energy laser system. Think Bond meets GoldFinger and the classic scene where a laser is burning its way towards our hero. Also about the IT environment, challenges and business solutions including Oracle products, virtualization and the move to the cloud. As a seasoned IT veteran, Philip also shares advice to newer IT architects starting out.


Watch the interview below.




Special thanks to Melody Wood, Oracle Product Manager who helped put this interview together.

We would love to hear your comments, good preferable, bad ok, let's leave out the ugly.