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Johan Louwers
1,829 followers -
Johan Louwers is for working in the IT world as from 1998 in several roles. As a Java and PL/SQL developer, UNIX and Linux administrator, Oracle Consultant, Oracle DBA, network consultant, storage admin and much much more.
Johan Louwers is for working in the IT world as from 1998 in several roles. As a Java and PL/SQL developer, UNIX and Linux administrator, Oracle Consultant, Oracle DBA, network consultant, storage admin and much much more.

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Oracle Jet - preparing Oracle Linux for Oracle Jet Development
Oracle JavaScript Extension Toolkit (JET) empowers developers by providing a modular open source toolkit based on modern JavaScript, CSS3 and HTML5 design and development principles. Oracle JET is targeted at intermediate to advanced JavaScript developers w...

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Oracle Linux - ClusterShell
When operating large clusters consisting out of large numbers of nodes the desire to be able to execute a command on all, or a subset of nodes, comes quickly. You might want for example to run certain commands on all nodes without having to login to the nod...

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Oracle Linux - Install Ansible
Ansible is an open-source automation engine that automates software provisioning, configuration management, and application deployment. Ansible is based upon a push mechanism where you will push configurations to the servers rather than pulling them as is d...

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Oracle Linux - inspect memory fragments with buddyinfo
The file /proc/buddyinfo is used primarily for diagnosing memory fragmentation issues. Using the buddy algorithm, each column represents the number of pages of a certain order (a certain size) that are available at any given time. You get to view the free f...

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Oracle Linux - inspect memory fragments with buddyinfo
The file /proc/buddyinfo is used primarily for diagnosing memory fragmentation issues. Using the buddy algorithm, each column represents the number of pages of a certain order (a certain size) that are available at any given time. You get to view the free f...

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Oracle Linux - inspect memory fragments with buddyinfo
The file /proc/buddyinfo is used primarily for diagnosing memory fragmentation issues. Using the buddy algorithm, each column represents the number of pages of a certain order (a certain size) that are available at any given time. You get to view the free f...

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Oracle Linux - Intuition Engineering and Site Reliability Engineering with Elastic and Vizceral
IT operations are vital to organisations, in daily business operations a massive system disruption will halt an entire enterprise. Running and operating massive scale IT deployments who are to big to fail takes more than how it is done traditionally. Next t...

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Oracle Linux - enable Docker daemon socket option
Installing Docker on a Oracle Linux instance is relative easy and you can get things to work extremely fast and easy. Within a very short timeframe you will have your Docker engine running and you first containers up and running. However, at one point in ti...

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Oracle Linux - IPv4 forwarding is disabled. Networking will not work
Using Docker for the first time can be confusing, especially on the networking part. When you run Docker for the first time on a vanilla Oracle Linux instance you might be hitting a networking issue the first time you start a container and try to do network...

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Oracle code - Jenkins check if file is present in workspace
When using Jenkins to automate parts of your build and deployment work in a CI/CD manner you do want to include certain failsafe manners. A common ask is to check if a certain file is present in your Jenkins workspace. In our example, we do pull code from a...
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