Interview Questions & Answers Sets on CI/CD

What is Continuous Integration? A development practice where developers integrate code into a shared repository frequently. It can range from a couple of changes every day or a week to…

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Interview Questions & Answers Sets on Version Control

What is Version Control? Version control is the sytem of tracking and managing changes to software code.It helps software teams to manage changes to source code over time.Version control also…

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Example Questions & Answers during Interview on DevOps Topics

What is DevOps? You can answer it by describing what DevOps means to you and/or rely on how companies define it. I’ve put here a couple of examples. Amazon: “DevOps…

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What is Pixie and its use cases?

Instant Kubernetes-Native Application Observability Pixie gives you instant visibility by giving access to metrics, events, traces and logs without changing code. Pixie is an open source observability tool for Kubernetes…

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Big data development: Its uses in 2021

Big data, as the name suggests, is a collection of data in massive volumes that grow exponentially with time. The data is of a larger size and complexity that traditional…

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How to force/redirect from http to https using .htaccess

This is the best for www and for HTTPS, for proxy and no proxy users Example Code – 1 – Forcing the domain to serve securely using HTTPS (for any…

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Complete Guide and Tutorials for Routing in Laravel

Routing All Laravel routes are defined in your route files, which are located in the routes directory. These files are automatically loaded by the framework.The routes/web.php file defines routes that…

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Docker Certified Associate(DCA) Study Guide

Docker Tutorials Fundamental To Advanced-2021 crash Course https://bit.ly/3hOIbTB Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps…

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Quick Tutorials of Hashicorp Packer

Packer AWS – Builders & Provisionars – aws-ubuntu.pkr.hcl Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps…

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How can we use Ansible and where?

Friends, First of all let’s know about Ansible is simple yet powerful. It is a great automation tool and does have great future. It is an open-source automation tool, or…

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List of Free Hosting Providers in 2021

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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Free IT and Software Certifications in 2021

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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Ansible Certification Roadmap & Path 2021

Retired – Red Hat Certified Specialist in Ansible Automation exam Now that EX407 is retired as of DEC 31st 2020, what are our options to get Certified in Ansible Automation…

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Google Cloud Certification Roadmap & Path

Google Cloud Associate Cloud Engineer Google Cloud Professional Cloud Architect Google Cloud Professional Cloud Developer Google Cloud Professional Data Engineer Google Cloud Professional Cloud DevOps Engineer Google Cloud Professional Cloud…

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Google Cloud Developer Architect Devops Engineer Cheatsheet

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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AWS Certification Roadmap & Path

AWS Certified Solution Architect Associate AWS Certified SysOps Administrator Associate AWS Certified Developer Associate AWS Certified Solution Architect Professional AWS Certified DevOps Engineer Professional AWS Certified DevOps Security Specialty AWS…

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Terraform Architecture and Components through diagram

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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Implement CI/CD using Terraform and Jenkins on AWS

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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Python Tutorials: Use cases in real life explained with image

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

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Top 21 Local Search Engine and Local Business Listing websites in 2021-22

Today, after the pandemic more than 90% of online experiences start with Search Engines. When someone wants to find businesses, products, services, or maybe any kind of query they first…

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Install and Configure Grafana in Linux

Download & Install Grafana 11.x using TAR Download & Install Grafana 8.x using TAR and RPM Ubuntu and Debian Standalone Linux Binaries(64 Bit) Red Hat, CentOS, RHEL, and Fedora(64 Bit)…

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Prometheus PromQL Example Query: node exporter

Example PromQL for Prometheus Server Prometheus PromQL Example Query: node exporter Metrics specific to the Node Exporter are prefixed with node_ and include metrics like node_cpu_seconds_total and node_exporter_build_info. Metric Meaning…

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NTP install and configure in Linux, Centos, Ubuntu & RHEL

NTP install and configure in Centos & RHEL NTP install and configure in Ubuntu Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus….

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Install and Configure Prometheus Server and Node Exporter in Linux

There are 3 importants components to make sure Prometheus is up and running. We need to install and configure Prerequisite Prometheus Errors & Solution Install and configure Prometheus Server in…

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Artifactory Install and Configurations Guide

Prerequisite https://www.jfrog.com/confluence/display/JFROG/System+Requirements Artifactory OSS Install in Linux Manually Artifactory Pro Install in Linux Manually Artifactory Pro Install in Linux using Debian Package Artifactory OSS Install in Linux using Docker Artifactory…

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Top Tips, Tricks and Checklist for Bloggers for quality blogs

Each Post Must contain following Specification: # Checklist Specifications 1 How many minimum Paragraphs 10 para 2 Lines of each Paragraph 4-5 lines 3 How many minimum image must 4…

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Python Tutorials: Anonymous/Lambda Function Tutorials with Example

Use of Lambda Function in python We use lambda functions when we require a nameless function for a short period of time. In Python, we generally use it as an argument…

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Gist Markdown Cheatsheet & Tutorials with Example

If you prefer to have a markdown cheat sheet that is downloadable as image or PDF, please visit CollectiveRay Markdown Cheat sheet.  Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge…

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Copyright Free Content Helps You Get More Sales in Digital Business

If you are running a digital business then you will know that unique content comes before everything.You have unique content; you get buyers and users as all the users want…

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What is Kubernetes?

An Overview of Kubernetes Kubernetes Architecture Explained through Images Kubernetes Glossary and Terminology Kubernetes API explained!!! What is Annotations in Kubernetes? Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge…

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