Oracle Tutorials: How to configure high availability in oracle?
What is high availability? High availability (HA) refers to the ability of a system or service to remain operational and accessible to users, even in the event…
What is major difference between RHEL 7, RHEL 8 and RHEL 9?
RHEL 7 and RHEL 9 are both major releases of the Red Hat Enterprise Linux operating system. The major differences between RHEL 7 and RHEL 9 are…
Packer Tutorials: Packer Install and configurations
Mac Windows https://releases.hashicorp.com/packer/1.8.6/packer_1.8.6_windows_amd64.zip Step 1 – Download and Extract at c:/tools/packer Step 2 – Add “c:/tools/packer” into env PATH variable Ubuntu Centos Rajesh KumarI’m Rajesh Kumar, a…
Packer Tutorials: Hashipcorp Packer workflow
The workflow for using HashiCorp Packer typically involves the following steps: Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing…
Packer Tutorials: Packer Commands reference with its use cases & Example
HashiCorp Packer is a tool for creating machine images that can be used with various cloud providers, virtualization platforms, or container systems. Here are some of the…
Packer Tutorials: List of Provisioner in hashicorp packer Post-processors
In HashiCorp Packer, post-processors are used to perform additional actions after the machine image has been created by the builder and provisioners. These actions can include compressing…
Packer Tutorials: List of Provisioner in Hashicorp Packer?
HashiCorp Packer is a tool for creating machine images that can be used with various cloud providers, virtualization platforms, or container systems. In addition to the builders,…
Packer Tutorials: List of Builder in Hashicorp Packer?
HashiCorp Packer is a tool for creating machine images that can be used with various cloud providers, virtualization platforms, or container systems. Packer uses a builder to…
Github Tutorials: How to Generate PAT in Github?
What is Github PAT? GitHub PAT (Personal Access Token) is a type of authentication token that provides a secure way to access GitHub’s API and perform actions…
AWS Tutorials: 𝐀 Design & S𝐭𝐫𝐚𝐭𝐞𝐠𝐲 𝐟𝐨𝐫 𝐚𝐜𝐭𝐢𝐯𝐞/𝐩𝐚𝐬𝐬𝐢𝐯𝐞 𝐦𝐮𝐥𝐭𝐢-𝐬𝐢𝐭𝐞 𝐢𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Container Runtime Interface (CRI-O) workflow
Let’s break the workflow : ✅ When a request comes to start a #container, #kubelet calls the CRI that invokes the internal CRI-O daemon in the #kernel✅…
Git Tutorial: Git Basic Workflow Working with Local Repo
Step 1 – Install git client [ONE TIME] Step 2 – Create git repo [ONE TIME] Step 3 – Decide which files you want to version OR…
What is Git and How it works? An Overview and Its Use Cases?
What is Git? Git is a free and open-source distributed versions control system use to handle small to very laravel projects code enabling multiple developers to work…
Types of Databases
To make the best decision for our projects, it is essential to understand the various types of databases available in the market. Popular relational databases include MySQL,…
API Tutorials: List API architecture styles
Architecture styles define how different components of an application programming interface (API) interact with one another. As a result, they ensure efficiency, reliability, and ease of integration…
Datadog Tutorials: Events API Emails
Events API emails give you the ability to send events via email. If your application does not have an existing Datadog integration, and you don’t want to…
Most popular Tools for Software Development and Testing
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
AWS Tutorials: How to create AWS ec2 Instance?
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Complete Guide for Anomaly Detection in Monitoring & Observability
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Dynatrace Tutorials: OneAgent
What is Dynatrace Oneagent? Dynatrace OneAgent is an intelligent, all-in-one monitoring solution designed for modern, complex IT environments. It is a software agent that can be installed…
Newrelic Tutorials: Newrelic command to troubleshoot Agent
General Commands New Relic is a tool used for application performance monitoring. To troubleshoot an agent in New Relic, there are several commands you can use depending…
Introduction of AWS Config & RDK
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Popular Quora Space for DevOps, DevSecOps, SRE, Cloud & Containers
Spaces is basically a platform that allows group of people to create Web space based on shared interests, allowing people to post/follow/search within these communities or “Spaces”…
Kapitan Tutorial: How to install Kapitan?
Install Kapitan in Ubuntu Install Kapitan using Docker Container Create Kapitan Project from Scratch If you want to start off with a clean kapitan project, you can run kapitan init…
Newrelic Tutorials: How to Integrate Apache2 in ubuntu
Config file Confirmation Confrimation Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best…
Introduction of Oracle RAC
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
AWS Tutorials: AWS VPC endpoints AKA AWS PrivateLink & AWS VPC endpoint services
AWS VPC endpoints AKA AWS PrivateLink A VPC endpoint enables connections between a virtual private cloud (VPC) and supported services, without requiring that you use an internet…
Terraform Tutorials: List of Terraform Blocks with Explanation
Example: terraform { required_version = “>= 0.14” backend “s3” { bucket = “my-terraform-state” key = “terraform.tfstate” region = “us-west-2” } } Example: provider “aws” { region =…
Terraform Tutorials: Variables Complete Reference
In Terraform, there are several types of variables that you can define, including: Quick Tutorials on Terraform Variable Terraform Variables and Configuration explained – 5 mins reading!…
Terraform Assignment and Excercise
Terraform Assignment: Getting Started Assignment 1 Create a new directory and write a terraform code which would create Ec2 instance and use Existing Security Group and Key….