In-Memory ActiveMQ and SpringBoot Example Project

SpringBoot is the trending way of building applications and microservices. ActiveMQ is one of the most popular message brokers. Did you know that with SpringBoot you can have embedded ActiveMQ instances? In this In-Memory ActiveMQ and SpringBoot Example Project, I

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They Tried to Hack My Blog – Keeping Your WordPress Site Secure

WordPress is a free and open-source content management system based on PHP & MySQL. Many blogs and websites use WordPress around the world. And the more popular it is the more attacks it will get from “bad” people. There are a

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React Native – Objects are not valid as a React child (found: object with keys {$$typeof, type, key, ref, props, _owner, _store})…

Objects are not valid as a React child (found: object with keys {$$typeof, type, key, ref, props, _owner, _store}) This annoying problem I bumped into the other day. First, I thought I made a mistake in the JSX snippets somewhere

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React Native – expo init fails with git permission denied error on MacOS

This problem can be quite annoying. Here is the part of my iTerm output displaying the error:

  Here is my expo diagnostics:

  To solve this I first tried launching a new terminal window and I immediately

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HiveServer test failed at Hive View startup in Ambari

When you try to start Hive View in Ambari UI you may encounter an error like this. There may be a couple of reasons for this error, the important thing is knowing where to look to locate the source of a problem.

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Create MD5 Hashes for Your Files in Windows Using FCIV

Why do you need to hash your files? Let’s start with that. You need to hash your files so that you can guarantee that none of your files have been altered. This is a way to make your delivery trustable.

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Installing Red Hat Process Automation Manager 7.1 on EAP 7.1 Easy and Fast – Tested on macOS Mojave

red hat process automation manager installation

Steps to install Red Hat Process Automation Manager 7.1 Browse to https://developers.redhat.com/products/rhpam/download/ Download the JBoss EAP 7.1 distribution zip Download the Red Hat Process Automation Manager – Business Central EAP 7 Deployable zip Download the Red Hat Process Automation Manager –

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VirtualBox Problem on Windows 10 – raw-mode unavailable courtesy of Hyper-V

You may see this message while trying to run VirtualBox on Windows 10: raw-mode unavailable courtesy of Hyper-V. To solve this problem follow these steps: Open the command prompt as an Administrator. Run the command with no argument: bcdedit. You will

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Installing and configuring PACEMAKER as a Cluster Manager – CentOS7

how to install and configure pacemaker

In this post, I will try to document the steps needed to set up and install Pacemaker as a cluster manager on CentOS7. Relate this post to the one that is about DRBD and combine them to get yourself a

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Installing and Configuring DRBD for High Availability – DRBD for Apache Server

DRBD example setup and configuration

DRBD stands for Distributed Replicated Block Device. DRBD is a distributed replicated storage system for the Linux platform which is implemented as a kernel driver. The main configuration file for DRBD is /etc/drbd.conf.   include “drbd.d/global_common.conf”   include “drbd.d/*.res” DRBD configuration

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