AWS
Terraform
CI-CD
BASH SCRIPTING
Linux
Ansible
GIT
Docker & Kubernetes
Jenkins
Python
Miscellaneous

• Day 1 - Introduction to CloudWatch Metrics https://medium.com/faun/100-days-of-devops-day-1-introduction-to-cloudwatch-metrics-b04be36307a8

• Day 2 - Introduction to Simple Notification Service(SNS) https://medium.com/@devopslearning/100-days-of-devops-day-2-introduction-to-simple-notification-service-sns-97137b2f1f1e

• Day 3 - Introduction to CloudTrail https://medium.com/@devopslearning/100-days-of-devops-day-3-introduction-to-cloudtrail-5ce923f44584

• Day 4 - CloudWatch log agent Installation — Centos7 https://medium.com/@devopslearning/100-days-of-devops-day-4-cloudwatch-log-agent-installation-centos7-d11054fffdf4

• Day 5 - CloudWatch to Slack Notification https://medium.com/@devopslearning/100-days-of-devops-day-5-cloudwatch-to-slack-notification-d2d84a192bf2

• Day 6 - CloudWatch Logs(Metric Filters) https://medium.com/@devopslearning/100-days-of-devops-day-6-cloudwatch-logs-metric-filters-94c572cc241

• Day 7 - AWS S3 Event https://medium.com/@devopslearning/100-days-of-devops-day-7-aws-s3-event-cf64c6699ca1

• Day 8 - Introduction to AWS Security Token Service(STS) https://medium.com/faun/100-days-of-devops-day-8-introduction-to-aws-security-token-service-sts-b0f164e5d6a3

• Day 9 - Delegate Access Across AWS Accounts Using IAM Roles https://medium.com/@devopslearning/100-days-of-devops-day-9-delegate-access-across-aws-accounts-using-iam-roles-b7898b15ed3d

• Day 10 - Restricting User to Launch only T2 Instance https://medium.com/faun/100-days-of-devops-day-10-restricting-user-to-launch-only-t2-instance-509aaaec5aa2

• Day 11 - Restricting S3 Bucket Access to Specific IP Addresses https://medium.com/@devopslearning/100-days-of-devops-day-11-restricting-s3-bucket-access-to-specific-ip-addresses-a46c659b30e2

• Day 12 - How to ensure that users can’t turn off CloudTrail https://medium.com/faun/100-days-of-devops-day-12-how-to-ensure-that-users-cant-turn-off-cloudtrail-ecdfce605894

• Day 13 - How to stop/start EC2 instance on schedule basis to save cost https://medium.com/faun/100-days-of-devops-day-13-how-to-stop-start-ec2-instance-on-schedule-basis-to-save-cost-ed224b80a2e8

• Day 14 - How to automate the process of EBS Snapshot Creation https://medium.com/@devopslearning/100-days-of-devops-day-14-how-to-automate-the-process-of-ebs-snapshot-creation-86418f2d7f09

• Day 22 - Introduction to Key Management System(KMS) https://medium.com/@devopslearning/100-days-of-devops-day-22-introduction-to-key-management-system-kms-4c73ff555169

• Day 23 - How to encrypt EBS Volume using KMS https://medium.com/@devopslearning/100-days-of-devops-day-23-how-to-encrypt-ebs-volume-using-kms-3706f7990f3

• Day 24 - How to encrypt S3 Bucket using KMS https://medium.com/@devopslearning/100-days-of-devops-day-24-how-to-encrypt-s3-bucket-using-kms-fc3b3bcf4c1b

• Day 25 - AWS S3 Bucket using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-25-aws-s3-bucket-using-terraform-caccaa6b9c81

• Day 26 - Introduction to IAM https://medium.com/@devopslearning/100-days-of-devops-day-26-introduction-to-iam-b69315623b01

• Day 28 - Introduction to VPC Flow Logs https://medium.com/@devopslearning/100-days-of-devops-day-28-introduction-to-vpc-flow-logs-d11a99cd18ca

• Day 29 - Introduction to RDS — MySQL https://medium.com/@devopslearning/100-days-of-devops-day-29-introduction-to-rds-mysql-14a6c0fa827b

• Day 30 - Introduction to AWS CLI https://medium.com/@devopslearning/100-days-of-devops-day-30-introduction-to-aws-cli-6e1227986ebb

• Day 31 - Introduction to VPC Peering https://medium.com/@devopslearning/100-days-of-devops-day-31-introduction-to-vpc-peering-662184e7559e

• Day 32 -Introduction to NAT Gateway https://medium.com/@devopslearning/100-days-of-devops-day-32-introduction-to-nat-gateways-7482da86e5f8

• Day 33 - On Demand Hibernate https://medium.com/@devopslearning/100-days-of-devops-day-33-on-demand-hibernate-6de5997481e4

• Day 35 - AWS S3 Intelligent-Tiering (S3 INT) https://medium.com/@devopslearning/100-days-of-devops-day-35-aws-s3-intelligent-tiering-s3-int-3b0c30c4bfeb

• Day 36 - Introduction to AWS System Manager https://medium.com/@devopslearning/100-days-of-devops-day-36-introduction-to-aws-system-manager-21ffb5d634d0

• Day 37 - Automate the Process of AMI Creation Using System Manager Maintenance Windows https://medium.com/@devopslearning/100-days-of-devops-day-37-automate-the-process-of-ami-creation-using-system-manager-maintenance-c81218004c55

• Day 38 - Introduction to Transit Gateway https://medium.com/@devopslearning/100-days-of-devops-day-38-introduction-to-transit-gateway-1d2f6ca1e4a0

• Day 39 - Introduction to VPC EndPoint https://medium.com/@devopslearning/100-days-of-devops-day-39-introduction-to-vpc-endpoint-7d949f61bed6

• Day 40 - Introduction to AWS Config https://medium.com/@devopslearning/100-days-of-devops-day-40-introduction-to-aws-config-e5f4ad41b194

• Day 41 - Real-Time Apache Log Analysis using Amazon Kinesis and Amazon Elasticsearch Service https://medium.com/@devopslearning/100-days-of-devops-day-41-real-time-apache-log-analysis-using-amazon-kinesis-and-amazon-f3b506626681

• Day 42 - Audit your AWS Environment https://medium.com/@devopslearning/100-days-of-devops-day-42-audit-your-aws-environment-50237fc3b3

• Day 43 - Introduction to EC2 https://medium.com/@devopslearning/100-days-of-devops-day-43-introduction-to-ec2-7004a603a67f

• Day 44 - S3 Cross Region Replication(CRR) https://medium.com/@devopslearning/100-days-of-devops-day-44-s3-cross-region-replication-crr-8c58ae8c68d4

• Day 45 - Simple Backup Solution using S3, Glacier and VPC Endpoint https://medium.com/@devopslearning/100-days-of-devops-day-45-simple-backup-solution-using-s3-glacier-and-vpc-endpoint-26c51ddba04

• Day 46 - Introduction to Amazon Glacier https://medium.com/@devopslearning/100-days-of-devops-day-46-introduction-to-amazon-glacier-e6587432e1a1

• Day 47 - Introduction to Amazon Elastic File System (EFS) https://medium.com/@devopslearning/100-days-of-devops-day-47-introduction-to-amazon-elastic-file-system-efs-d81598439fcd

• Day 48- Threat detection and mitigation at AWS https://medium.com/the-crossover-cast/100-days-of-devops-day-48-threat-detection-and-mitigation-at-aws-b29611707f67

• Day 49 - Introduction to Route53 https://medium.com/@devopslearning/100-days-of-devops-day-49-introduction-to-route53-d6b01195aaef

• Day 50 - Introduction to Route53 Failover https://medium.com/@devopslearning/100-days-of-devops-day-50-introduction-to-route53-failover-9466cfb3c5d4

• Day 69 - Introduction to AWS Lambda https://medium.com/@devopslearning/100-days-of-devops-day-69-introduction-to-aws-lambda-6ac6dfbd6fb8

• Day 70 - Introduction to Boto3 https://medium.com/@devopslearning/100-days-of-devops-day-70-introduction-to-boto3-98a257749dd0

• Day 71 - EC2 Instance creation using Lambda https://medium.com/@devopslearning/100-days-of-devops-day-71-ec2-instance-creation-using-lambda-e45dd5129364

• Day 92 - Choosing Right EC2 Instance Type https://medium.com/@devopslearning/100-days-of-devops-day-92-choosing-right-ec2-instance-type-2f5d52bd6c85

• Day 98 - AWS Lambda with Terraform Code http://100daysofdevops.com/100-days-of-devops-day-98-aws-lambda-with-terraform-code/

• Day 99 - AWS Boto3 http://100daysofdevops.com/100-days-of-devops-day-99-aws-boto3/

• Day 15 - Introduction to Terraform https://medium.com/@devopslearning/100-days-of-devops-day-15-introduction-to-terraform-7a168dec8d38

• Day 16 - Building VPC using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-16-building-vpc-using-terraform-7c507ce07413

• Day 17 - Creating EC2 Instance using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-17-creating-ec2-instance-using-terraform-c876a09d9d66

• Day 18 - Add monitoring to these instances using Terraform(CloudWatch and SNS) https://medium.com/@devopslearning/100-days-of-devops-day-18-add-monitoring-to-these-instances-using-terraform-cloudwatch-and-sns-530520239fb6

• Day 19 – Application Load Balancer using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-19-application-load-balancer-using-terraform-58794aeaf31f

• Day 20 — Auto-Scaling Group using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-20-auto-scaling-group-using-terraform-3000a834fa35

• Day 21 - MySQL RDS Database Creation using Terraform https://medium.com/@devopslearning/100-days-of-devops-day-21-mysql-rds-database-creation-using-terraform-278eeaff339f

• Day 27 - Introduction to Packer https://medium.com/@devopslearning/100-days-of-devops-day-27-introduction-to-packer-d77089ecac01

• Day 34 - Terraform Pipeline using Jenkins https://medium.com/@devopslearning/100-days-of-devops-day-34-terraform-pipeline-using-jenkins-a3d81975730f

• Day 51 - Introduction to Bash Scripting https://medium.com/@devopslearning/100-days-of-devops-day-51-introduction-to-bash-scripting-9501ce7a32a4

• Day 52 - Conditional Testing in Shell https://medium.com/@devopslearning/100-days-of-devops-day-52-conditional-testing-in-shell-6d4eb4a1f010

• Day 53 - Introduction to Regular Expression — Part 1 https://medium.com/@devopslearning/100-days-of-devops-day-53-introduction-to-regular-expression-part-1-c6218f1670b7

• Day 65 - Bash Script to Monitor Service https://medium.com/@devopslearning/100-days-of-devops-day-65-bash-script-to-monitor-service-b7d75a5b2b0d

• Day 85 - Shell Script to find the failed login https://medium.com/@devopslearning/100-days-of-devops-day-85-shell-script-to-find-the-failed-login-a87975b9e21f

• Day 91 - How to check if the file exists (Bash/Python) https://medium.com/@devopslearning/100-days-of-devops-day-91-how-to-check-if-the-file-exists-bash-python-ddc8087a3cbf

• Day 54 - And You Thought You Knew RPM https://medium.com/@devopslearning/100-days-of-devops-day-54-and-you-thought-you-knew-rpm-18e63e8aa4bc

• Day 55 - Introduction to YUM https://medium.com/@devopslearning/100-days-of-devops-day-55-introduction-to-yum-5c5f0db91787

• Day 56 - Debugging Performance Issue using SAR https://medium.com/@devopslearning/100-days-of-devops-day-56-debugging-performance-issue-using-sar-fcb61d6dc641

• Day 57 - Debugging I/O Performance Issue https://medium.com/@devopslearning/100-days-of-devops-day-57-debugging-i-o-performance-issue-d6dd05dd2dea

• Day 62 - Useful Linux Command for Network Troubleshooting https://medium.com/@devopslearning/100-days-of-devops-day-62-useful-linux-command-for-network-troubleshooting-920430a2f75f

• Day 63 - Wireshark for HTTP/HTTPS Analysis https://medium.com/@devopslearning/100-days-of-devops-day-63-wireshark-for-http-https-analysis-550857e2da6c

• Day 66 - Linux Boot Process https://medium.com/@devopslearning/100-days-of-devops-day-66-linux-boot-process-a8dbddcc508e

• Day 67 - Introduction to Chrony https://medium.com/@devopslearning/100-days-of-devops-day-67-introduction-to-chrony-680b3d016260

• Day 68 - Introduction to Systemd https://medium.com/@devopslearning/100-days-of-devops-day-68-introduction-to-systemd-b54fb4ca006d

• Day 76 - How Linux Kernel is organized https://medium.com/@devopslearning/100-days-of-devops-day-76-how-linux-kernel-is-organized-257bafbc31fc

• Day 77 - Process Management in Linux https://medium.com/@devopslearning/100-days-of-devops-day-77-process-management-in-linux-21aabae5b124

• Day 73 - Introduction to Ansible https://medium.com/@devopslearning/100-days-of-devops-day-73-introduction-to-ansible-723ad630fcee

• Day 74 - Introduction to GIT https://medium.com/@devopslearning/100-days-of-devops-day-74-introduction-to-git-9374bafb08b6

• Day 58 - Docker Basics https://medium.com/@devopslearning/100-days-of-devops-day-58-docker-basics-d1c75cb84dc4

• Day 59 - Introduction to DockerFile https://medium.com/@devopslearning/100-days-of-devops-day-59-introduction-to-dockerfile-e854ba90669a

• Day 72 - Introduction to Kubernetes https://medium.com/@devopslearning/100-days-of-devops-day-72-introduction-to-kubernetes-9dda4009a0ab

• Day 60 - Introduction to Jenkins https://medium.com/@devopslearning/100-days-of-devops-day-60-introduction-to-jenkins-5afc0f700335

• Day 61 - Jenkins Agent Node https://medium.com/@devopslearning/100-days-of-devops-day-61-jenkins-agent-node-4b3779366767

• Day 64 - Regular Expression using Python https://medium.com/@devopslearning/100-days-of-devops-day-64-regular-expression-using-python-edf5a776fa74

• Day 78- Python OS/Subprocess Module https://medium.com/@devopslearning/100-days-of-devops-day-78-python-os-subprocess-module-95ae25bc686d

• Day 79-Apache Log Parser Using Python https://medium.com/@devopslearning/100-days-of-devops-day-79-apache-log-parser-using-python-849135ed1a08

• Day 80-Python Unit Testing(Pytest) https://medium.com/@devopslearning/100-days-of-devops-day-80-python-unit-testing-pytest-67168a91ea06

• Day 81 -Debugging Python Code https://medium.com/@devopslearning/100-days-of-devops-day-81-debugging-python-code-a1e19b4011a8

• Day 82 - Python Object Oriented Programming(OOP) https://medium.com/@devopslearning/100-days-of-devops-day-82-python-object-oriented-programming-oop-44786b0184f6

• Day 86 - Python Flow Control(if-else statement) https://medium.com/@devopslearning/100-days-of-devops-day-86-python-flow-control-if-else-statement-a20cf04b4fbe

• Day 87 - While/For Loop Python https://medium.com/@devopslearning/100-days-of-devops-day-87-while-for-loop-python-cf405b6e868f

• Day 88 - Lists in Python https://medium.com/@devopslearning/100-days-of-devops-day-88-lists-in-python-a6eb7fdb6cee

• Day 89 - Python Files I/O https://medium.com/@devopslearning/100-days-of-devops-day-89-python-files-i-o-c8b771b43fb7

• Day 90 - Try and Except Statement Python https://medium.com/@devopslearning/100-days-of-devops-day-90-try-and-except-statement-python-48d5c140bcc7

• Day 93 - Python Functions https://medium.com/@devopslearning/100-days-of-devops-day-93-python-functions-f7a8f92fb563

• Day 94 - Introduction to Numpy for Data Analysis https://medium.com/@devopslearning/100-days-of-devops-day-94-introduction-to-numpy-for-data-analysis-127561af9e1d

• Day 95 - Introduction to Django https://medium.com/@devopslearning/100-days-of-devops-day-95-introduction-to-django-37942477d6c

• Day 75 - Introduction to Fabric https://medium.com/@devopslearning/100-days-of-devops-day-75-introduction-to-fabric-2e80f5c3148f

• Day 83 - Introduction to Splunk https://medium.com/@devopslearning/100-days-of-devops-day-83-introduction-to-splunk-9c1caf04f253

• Day 84 - Introduction to ElasticSearch https://medium.com/@devopslearning/100-days-of-devops-day-84-introduction-to-elasticsearch-d4927603b99c

• Day 96 - Document Object Model(DOM) https://medium.com/@devopslearning/100-days-of-devops-day-96-document-object-model-dom-8860ea8018f7

• Day 97 - Introduction to JQuery https://medium.com/@devopslearning/100-days-of-devops-day-97-introduction-to-jquery-f63288571e8d