How to enable http Proxy Settings for Yum Command on RHEL / CentOS Servers?
No username and password required: To configure proxy without username and password: export http_proxy=http://SERVER:PORT/ Username and password authentication: To configure the proxy server with username and password authentication: export http_proxy=http://USERNAME:PASSWORD@SERVER:PORT/…
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Docker Interview Questions and Answer Part – 3
Whats is docker? Difference between container & VMs? Difference between Docker & Virtualization? Difference between container and image? How image builds? What are image layers? How image layers work? What…
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Ansible Interview Questions and Answer – Part 7
Task to connect(SSH) Ansible to remote host using another user & run the playbook to the remote host using with another user? What is Ansible vault? How to decrypt a…
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Ansible Interview Questions and Answer – Part 6
What is Ansible? What is Configuration Management? Is Ansible only a tool for Configuration Management? What are the components of Ansible? How Ansible works? What are the other tools in…
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Jenkins Interview Questions and Answers – Part 3
What is Jenkins ? Why we use Jenkins ? What are the other tools/technologies present in market other than jenkins for CI/CD ? How to move Jenkins from one server…
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Git Interview Questions and Answer Part – 3
What is GIT ? What is difference between GIT & Github ? Why we use GIT ? What is SCM & VCS ? What are the process of pushing the…
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Docker Interview Questions and Answer Part – 2
What is Docker compose? What is Docker server version? What are the advantages of Docker? How do you setup Docker in Jenkins in production environment? How do create Docker image…
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Shell Bash Scripting Interview Questions and Answer – Part 3
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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Kubernetes Interview Questions and Answer Part – 2
How you will link when the docker containers is in different virtual machine is there any configuration in docker compose file are any command or any variable? What you will…
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Ansible Interview Questions and Answer – Part 5
How can you the fact varibales in ansible? can we create an ansible module ? 83 . How can you do provisioning with ansible? 84 . BASH Vs Python Vs…
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Ansible Interview Questions and Answer – Part 4
What is local action in Ansible? What are the roles in Ansible? Write a playbook for installation of apache in ubuntu and centos? How to create a role in ansible?…
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Ansible Interview Questions and Answer – Part 3
What are handlers used for in ansible and how is it diffrent from tasks? Conditional execution in ansible is used for what purpose and write down its syntax with small…
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Ansible Interview Questions and Answer – Part 2
What is the purpose and location of ansible.cfg file. Name any two settings from anible.cfg file. Please write below a sample inventory file with host, group & group of groups…
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Ansible Interview Questions and Answer – Part 1
What is inventory file used for and default inventory host location? What is ansible configuration file used for and its default path? Do you write your inventory file? How many…
Read more »AWS Interview Questions and Answer Part – 2
What kind of instances have you created in AWS ? What is the context level cache in AWS ? What is NAT gate way and IGW ? How can you…
Read more »Jenkins Interview Questions and Answer – Part 2
beginner Explain what is Jenkins and what is it used for Explain each of the following in the context of nodes: Master Slave Executor Agent Label Explain each of the…
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AWS Interview Questions and Answer Part – 1
Global Infrastructure Explain the following Availability zone Region Edge location S3 – beginner Explain what is S3 and what is it used for What is a bucket? True or False?…
Read more »Docker Interview Questions and Answer Part – 1
What happens when you run docker run hello-world? How do you run a container? What do you see when you run docker ps? What docker commit does? when will you use it? Explain what…
Read more »Kubernetes Interview Questions and Answer Part – 1
What is Kubernetes? Why Docker isn’t enough? Why do we need Kubernetes? Describe the architecture of Kuberenets How do you monitor your Kuberenets? What is kubectl? How do you use…
Read more »Git Interview Questions and Answer Part – 2
What is the difference between git pull and git pull? what is ‘working tree’? what is ‘staging area’? How do you resolve git conflicts? What is the difference between git reset and git reverse? In what…
Read more »How to create multiple AWS CloudFormation resources such as ec2 without AutoScaling group?
Some of the similar questions such as … How to do conditioning in AWS CloudFormation? How to do looking in AWS CloudFormation? No it is not possible looping in AWS…
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Terraform Interview Questions and Answer – Set 1
External data sources must return information in what format? A. XML B. HTML C. JSON D. YAML Ans: C. JSON Which of the following is an example of Source Control…
Read more »Cloudformation WordPress Mappings EC2 UserData DBInstance SecurityGroup Outputs Examle Program
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…
Read more »CloudFormation EC2 Parameters Mapping AllowedValues ElasticIP SecurityGroup Outputs Example Program
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…
Read more »Cloudformation EC2 VPC Complete Outputs WebServersetup Example Program
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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CloudFormation EC2 Mapping Parameters AllowedValues Example Program
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…
Read more »AWS Cloudformation Lab and Assignment – 1
Task 1: Using Cloudformation temmplate json, Create a EC2 Instance and output Public IP and Private IPs. Task 2:Using Cloudformation temmplate json, Create a EC2 Instance/ElasticIP/SecurityGroup and output Public IP…
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CloudFormation EC2 Volume ebs elasticip Example Program
Creating a security group Creating an EC2 instance Increased root volume on the EC2 instance Attaching an externally created EBS volume Attached Elastic IP to the instance Rajesh KumarI’m a…
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CloudFormation EC2 Sample Example Program
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…
Read more »Terraform Notes – October – First Week – 2019 – Bangalore
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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