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Setup KVM HA Cluster | Pacemaker GUI | RHEL/CentOS 8

Step-by-Step Tutorial to configure KVM HA Cluster using Pacemaker GUI (WEB UI) and CLI tool in RHEL and CentOS 8 Linux. Configure Virtual Floating IP, verify failover

Deepak Prasad15 min read
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Essential and Useful docker logs command Tips Revealed

docker logs -f or --follow is used to monitor the logs of container with dynamic update. docker logs --tail is used to additionally limit the number of lines to view from the logs.

Deepak Prasad7 min read
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8 Common Mistakes First-Time Linux Users Make

So you've finally made the switch to Linux? Congratulations! It's like entering a new world of possibilities.

Deepak Prasad6 min read
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Kubernetes Privileged Pod Practical Examples

Step by Step instructions to create Kubernetes privileged pod and Kubernetes non-privileged pod with Linux capabilities examples

Deepak Prasad14 min read
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Steps to install Kubernetes Cluster with minikube

Deploy single node Kubernetes Cluster using minikube using Oracle VirtualBox on Windows environment. The cluster node will be on Ubuntu Linux.

Deepak Prasad7 min read
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Configure High Availability Cluster in CentOS 7 (Step by Step Guide)

Step by Step guide to configure high availability cluster in CentOS or Red Hat 7 using pacemaker and corosync, 3 node HA Cluster on Virtual Box or KVMs..

Deepak Prasad9 min read
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Helm hooks examples in Kubernetes for beginners

Helm hooks provides a means to hook into events in the release process and take action. Hooks like pre-install can be used to pass configmaps and secrets to the pods and Jobs

Deepak Prasad14 min read
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#2-ELK Stack: Enable https with ssl/tls & secure elasticsearch cluster

Steps to enable HTTPS and SSL to secure elasticsearch cluster and ELK Stack using encrypted key and certificates in Linux with examples RHEL/CentOS 7/8

Deepak Prasad9 min read
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Setup KVM DRBD Cluster File System Pacemaker CentOS 8

Step-by-Step tutorial to configure DRBD CLuster File System with clone using Pacemaker 2.0 on KVM Virtual Machines with RHEL/CentOS 8 Linux. Verify DRBD Failover

Deepak Prasad11 min read
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How to install multi node openstack on virtualbox with packstack on CentOS

Install multi node OpenStack on VirtualBox using Packstack using CentOS 7 VM on Windows 10 laptop. Generate and configure packstack answer file for Openstack

Deepak Prasad22 min read
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Binary Options Trading Bots: The Intersection of Finance and Programming

In the dynamic world of financial markets, binary options have carved a niche for themselves due to their simplicity and high potential returns. However, like

Deepak Prasad6 min read
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Helm Named Templates in Kubernetes [In-Depth Tutorial]

Dive deep into the creation and usage of Named Templates in Helm3. Understand how to define and call Named Templates, pass values to them, use control structures, and more. Also explore advanced topics, like creating …

Deepak Prasad15 min read
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What is fencing | Setup KVM cluster fencing RHEL CentOS 8

Step-by-Step Tutorial to configure cluster fencing, stonith device in RHEL and CentOS 8 Linux. Use fence_xvm to fence KVM HA Cluster nodes. Setup pacemaker fencing.

Deepak Prasad10 min read
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Weather Data Made Easy: Mastering API Integration for Developers

Weather information is vital in our daily lives, from planning outdoor activities to making informed decisions in sectors like agriculture, transportation,

Deepak Prasad7 min read
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Install ELK stack on Rocky Linux 8

Step by step instructions to install ELK Stack on Rocky Linux. Install Elasticsearch, Logstash and Kibana

Deepak Prasad8 min read
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Mount ConfigMap as file in existing directory - K8s

Mount ConfigMap as file into an existing directory in Kubernetes with and without helm charts. Mount files into an existing volume inside Pod container.

Deepak Prasad5 min read
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Mount multiple K8 secrets to same directory

Step by step instructions to mount multiple secrets to same directory in Kubernetes. 4 different ways to mount multiple secrets to same path.

Deepak Prasad6 min read
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How to configure Openstack High Availability with corosync & pacemaker

Step by step guide to configure openstack high availability (HA) using pacemaker and corosync for openstack controller nodes with HAProxy and VIP.

Deepak Prasad8 min read
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Effective Cybersecurity Measures for Mac Owners

Use these cybersecurity measures to protect your Mac from malware. Learn the best Mac security methods and software to protect your computer from hackers.

Deepak Prasad6 min read
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Step-by-Step Tutorial: Install Docker on CentOS 7 with LVM Thin Provisioning

What is Docker and Docker vs Kubernetes vs Mesos container. Step by Step guide How to install Docker on CentOS 7 Linux. yum install docker centos 7

Deepak Prasad9 min read
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rendered manifests contain a resource that already exists

Facing the "Error: INSTALLATION FAILED: rendered manifests contain a resource that already exists" during Helm chart installation? This comprehensive article explores the causes behind the error and offers four effective …

Deepak Prasad5 min read
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Transforming Academic Support with Advanced Technology

In the digital era, where everything from grocery shopping to financial consulting is available online, education technology (EdTech) has also made

Deepak Prasad4 min read
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Offline Advertising Methods That Still Rule in the Digital Age

It's easy to assume that the most effective advertising strategies are online today. However, despite the popularity and convenience of digital marketing

Deepak Prasad6 min read
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Detailed review on Movavi Video Editing Software

Read a detailed review of Movavi Video Editing Software. Find out its features, pros, and cons to make an informed decision about video editing.

Deepak Prasad8 min read
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Securing Cloud Storage: Challenges, Strategies & Best Practices

Explore the challenges, strategies, and best practices for securing cloud storage. Protect your data and ensure the integrity and confidentiality of your files.

Deepak Prasad13 min read
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Linux Versus the World: What Makes It Stand Out Among OS

Discover what makes Linux stand out among operating systems. Explore its features, flexibility, and why it is a popular choice for developers and enthusiasts.

Deepak Prasad6 min read
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Language Learning Tools for DevOps, Virtualization & Security Professionals

Discover effective language learning tools and resources for professionals in DevOps, virtualization, and security roles. Enhance your communication skills, open up career opportunities, and immerse yourself in …

Deepak Prasad8 min read
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An Overview of Online Graphic Editors

Online graphic editors have become increasingly popular in recent years, particularly as more and more people turn to the internet for their creative needs.

Deepak Prasad7 min read
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Difference between PDM & PLM [In-Depth Tutorial]

Product Data Management (PDM) and Product Lifecycle Management (PLM) are two essential tools for managing product development and production. Both PDM and PLM

Deepak Prasad6 min read
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How to create cluster resource in HA Cluster (with examples)

Configure High Availability Cluster and configure cluster resource and add behind the cluster in CentOS and Red Hat 7 Linux using pcs resource create..

Deepak Prasad8 min read