100 Days of DevOps and Cloud Series&#39; Articles

4 min read

Nnamdi Felix Ibe

Jul 11

Day 8: Ansible's 'ping' Isn't a Ping, and the AWS Stop Flag Reads Backwards

#devops #ansible #aws #linux

4 min read

Cover image for Day 9: A Database That Won't Start Is Usually a Permissions Problem

Nnamdi Felix Ibe

Jul 12

Day 9: A Database That Won't Start Is Usually a Permissions Problem

#devops #linux #aws #database

3 min read

Cover image for Day 10: Automating Backups Over SSH, and What an Elastic IP Really Costs Now

Nnamdi Felix Ibe

Jul 13

Day 10: Automating Backups Over SSH, and What an Elastic IP Really Costs Now

#devops #linux #aws #bash

3 min read

Nnamdi Felix Ibe

Jul 15

Day 11: A WAR File Deploys Itself, and an ENI Is a Network Card You Can Move

#devops #linux #aws #tomcat

3 min read

Nnamdi Felix Ibe

Jul 16

Day 12: A Port Conflict Killed httpd, and an Attached Volume Isn't a Mounted One

#devops #linux #aws #networking

7

3 min read

Cover image for Day 13: Firewall Rules Are About Order, and Creating an AMI Reboots the Instance

Nnamdi Felix Ibe

Jul 17

Day 13: Firewall Rules Are About Order, and Creating an AMI Reboots the Instance

#devops #linux #aws #security

3 min read

Nnamdi Felix Ibe

Jul 19

Day 14: Restoring a Broken httpd, and the One EC2 Command With No Undo

#devops #linux #aws #cloud

3 min read

Cover image for Day 15: HTTPS on Nginx, and the Incremental Trick That Makes Snapshots Cheap

Nnamdi Felix Ibe

Jul 20

Day 15: HTTPS on Nginx, and the Incremental Trick That Makes Snapshots Cheap

#devops #linux #aws #nginx

3 min read

Nnamdi Felix Ibe

Jul 22

Day 16: A Load Balancer in Ten Lines of Nginx, and Least-Privilege IAM

#devops #linux #aws #iam

3 min read

Cover image for Day 17: Postgres Privileges and IAM Groups Are the Same Lesson

Nnamdi Felix Ibe

Jul 24

Day 17: Postgres Privileges and IAM Groups Are the Same Lesson

#devops #linux #aws #postgres

4

3 min read

Cover image for Day 18: MariaDB's Secure Install, and Why 'Read-Only' Needs More Than ec2:Describe

Nnamdi Felix Ibe

Jul 27

Day 18: MariaDB's Secure Install, and Why 'Read-Only' Needs More Than ec2:Describe

#devops #linux #aws #security

3 min read

Nnamdi Felix Ibe

Jul 28

Day 19: Apache Deploys, and a Policy Is Just a Document Until It's Attached

#devops #linux #aws #iam

3 min read

Cover image for Day 20: Wiring Nginx to PHP Over a Socket, and Giving EC2 a Role Without Keys

Nnamdi Felix Ibe

Jul 30

Day 20: Wiring Nginx to PHP Over a Socket, and Giving EC2 a Role Without Keys

#devops #linux #aws #nginx

10

3 min read

Cover image for Day 21: A Bare Git Repo Is the Hub, and an Elastic IP Is the Anchor

Nnamdi Felix Ibe

Aug 1

Day 21: A Bare Git Repo Is the Hub, and an Elastic IP Is the Anchor

#devops #git #aws #linux

3 min read

Cover image for Day 22: Cloning a Repo, and Why Your New EC2 Refuses Your SSH

Nnamdi Felix Ibe

Aug 3

Day 22: Cloning a Repo, and Why Your New EC2 Refuses Your SSH

#devops #aws #git #ssh

3 min read

Cover image for Day 23: A Fork Is Not a Clone, and Sync Is Not a Copy

Nnamdi Felix Ibe

Aug 6

Day 23: A Fork Is Not a Clone, and Sync Is Not a Copy

#git #aws #linux #devops

4 min read

Nnamdi Felix Ibe

Aug 8

Day 24: A Branch Is Just a Pointer, and a Load Balancer Is Three Things

#devops #git #aws #networking

10

4 min read

Cover image for Day 25: Git Won't Guess, and an Unconfirmed Alarm Never Rings

Nnamdi Felix Ibe

Aug 10

Day 25: Git Won't Guess, and an Unconfirmed Alarm Never Rings

#devops #git #aws #monitoring

4 min read

Cover image for Day 26: Origin Is Just a Nickname, and Localhost Tells the Truth

Nnamdi Felix Ibe

Aug 12

Day 26: Origin Is Just a Nickname, and Localhost Tells the Truth

#devops #git #aws #nginx

11

4 min read

Cover image for Day 27: Undo Isn't a Switch, and Neither Is Public

Nnamdi Felix Ibe

Aug 15

Day 27: Undo Isn't a Switch, and Neither Is Public

#devops #git #aws #vpc

13