Chef Tutorials: Load balancer for Chef Automate and Chef Infra

Reference Load Balancing Progress Chef Automate and Infra Server 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…

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How to check VT-X/AMD-v enabled or not in your Laptop?

Method 1 – Using task Manager If you have Windows 10 or Windows 8 operating system, the easiest way to check is by opening up Task Manager->Performance Tab. You should see…

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List of GitOps Tools

What is GitOps? GitOps uses Git repositories as a single source of truth to deliver infrastructure as code. Submitted code checks the CI process, while the CD process checks and…

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What is Platform Ops?

What Is a Platform? A platform encompasses a span of technologies involving different engineering stakeholders, for example, voice analytics software that has a front-end dev team, as well as an…

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Chef Tutorials: Test Kitchen Workflow and Examples

kitchen.yml Used to configure virtual environments for Test Kitchen Gemfile Bundler uses this file to configure the gem repository and the list of gems to down‐load. Bundler will automatically determine…

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How to Install Ruby on Linux

How to Install Ruby on CentOS 7 $ sudo yum install ruby$ ruby –version How to Install Ruby on Ubuntu $ sudo apt-get install ruby-full$ ruby –version How to test…

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Chef Tutorials: What is Test Kitchen?

Use Test Kitchen to automatically test cookbooks across any combination of platforms and test suites: Bento Bento is a Chef Software project that produces base testing VirtualBox, Parallels, and VMware…

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Waterfall -> Agile -> Cloud Native -> Next??

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 10 Architecture Characteristics

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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Integrating Blockchain and DevOps

Introduction The era of dynamic user-generated content employed extensively in e-commerce was ushered in by Web2. Web3, on the other hand, which is supported by blockchain technology, ushers in a…

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Chef Tutorials: Uninstalling Chef Software, chef-automate and chef-server

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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4 In-Demand Data Analyst Skills for 2023

As the digital age continues to evolve and data becomes an increasingly valuable commodity, the role of the data analyst is becoming more important than ever. Data analysts are responsible…

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Why Programming Is an Essential Skill for New-Generation Learners

The world has become more complex, moving from an industrial to a digital age. The ability to program opens up opportunities and skill sets that can be learned through practical…

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Python Example Code: Find all the pairs of numbers which sum upto `k`

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 Example Code: Convert the string “123” into 123, without using the built-api int()

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 Example Code: Find the pair of adjacent elements that has the largest product

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 Example Code: Program to display the Fibonacci sequence up to n-th termPython Example Code:

What is the Fibonacci sequence? The Fibonacci sequence is a set of integers (the Fibonacci numbers) that starts with a zero, followed by a one, then by another one, and then…

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Python Example Code: Program for printing k largest elements in an array

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: List of functions of list Datatypes

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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Linux Tutorials: Enable SSH Password authentication in linux servers

Step 1 – Enable PasswordAuthentication yes in sshd_config Step 2 – Restart sshd server Step 3 – Set user password Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and…

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Python Tutorials: Modules with example

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: Namesapce in Python with example

What is Namespace in Python? A namespace is a collection of currently defined symbolic names along with information about the object that each name references. You can think of a…

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Chef Tutorials: knife command line reference

knife bootstrap knife client knife configure knife cookbook knife cookbook site knife download knife delete knife edit knife list knife node knife role knife show knife ssh knife ssl check…

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Chef Tutorials: chef-automate commands line reference

Usage:chef-automate [command] 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,…

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Linux Tutorials: Types of Process in Linux

There are five types of Process in Linux 1. Parent process: The process created by the user on the terminal. All processes have a parent process, If it was created directly…

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4 Key Linux Skills to Master for a Cybersecurity Professional Career

Cybersecurity is not just a necessity but also a crucial factor in business success. In today’s era, cybersecurity is more important than ever. With new viruses and malware constantly emerging,…

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React Native Developer Salary in Emerging Market Conditions

As of October 2022, ZipRecruiter reports that a React Native developer in the United States may expect an average salary of $125,855. A React Native developer salary may be expected…

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Chef Tutorials: Install and Configure Chef Automate and Infra Server

Step – 1 – Setup Chef Automate and Chef Infra Server If you want to start from scratch, create a Linux VM or cloud instance, login as an elevated user,…

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Introduction of Chef Automate

Chef Automate is a centralized dashboard for following product of chef for enterprise. Chef Automate provides Chef servers that include premium features of Chef Automate: Chef Infra and Chef InSpec….

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Chef Tutorials: How to looping and iterative in Chef Cookbook recipe?

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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