Linux for Cloud & DevOps Engineers - Hands-on!!

Linux for Cloud & DevOps Engineers

Introduction

• Create an AWS Account

• Create an EC2 Instance - Amazon Linux

• Create a key pair - Public & Private Key

• MobaXterm - Connect EC2 Instance

• Putty - Connect EC2 Instance

• Gitbash - Connect to EC2 Instance

• Create an EC2 Instance - Ubuntu

• Filter Instances

• Access Instance using User Name & Password (Without using Private key)

• More about private & public key

• Passwordless authentication from Linux to Ubuntu Server

• Lab - Access the Amazon Linux Instance other than the default user

• Lab - Access the Ubuntu Linux Instance other than the default user

• Lab - Passwordless Authentication between Amazon Linux & Ubuntu and Vice versa

Linux Filesystem Structure & Basic commands

• Linux File Hierarchy Structure

• Basic Linux Commands Practice

  pwd, touch, vi/vim/nano cp mv mkdir, etc

User Administration

• Overview of User Administration

• Lab - Managing User Account

• Lab - User & Group Creation

• Lab - Primary & Supplementary group

• Lab - Usermod Command

• Understanding the Shadow file

User’s Home Directory In Linux

• Overview of .bash_profile, .bashrc & .bash_logout

• Lab - Initialization file

• Lab - Set PATH in .bash_profile file

• Lab - Set Aliases & Login prompt PS1

Permissions in Linux

• Overview of Permissions in Linux

• File & Directory Attributes

• Access Modes ( Absolute & Symbolic Mode)

• Change Ownership

• Scenario-based Lab Sessions

• Lab - Permit access to a file/directory for a group

• Lab - Permit access to a file/directory for a others

• Lab - Change the ownership or a file/directory

Troubleshooting Instance launch Issues

• VcpuLimitExceeded Error

• InstanceLimitExceeded Error

• Insufficient Instance Capacity

• Instance terminates immediately

• Common SSH Login Issues

EC2 - Elastic Compute Cloud

• Overview of EC2 Service

• Deploy an EC2 Instance Lab

• Create a key pair to access the Instance

• Connect to an Instance via putty

• Connect to an Instance from Linux Server

• Enable Termination Protection

• EC2 Shutdown Behavior

• Overview of Security Groups

• EBS & Volume types

• Lab Session on EBS

• EBS Volume & Snapshot

• Amazon Machine Image (AMI)

• Lab Session on AMI & SnapShot

• Encrypted Root Volume

• Elastic IP

• EC2 Instance backup and restore

• Increase the Size of a Root Volume

• EC2 Instance Metadata

• EC2 Instance Userdata

Systemd - System and Service Manager

• Introduction to Systemd, Systemd units

• Lab on systemctl command and journal

Bonus AWS Systems Manager

• AWS Systems Manager Overview

• AWS Systems Manager Agent (SSM Agent)

• Configure EC2 Instances with SSM Agent & Role

• AWS Tags & Resouce Groups

• AWS Systems Manager Run Command

• AWS Systems Manager Documents

• AWS Systems Manager Inventory

• Configure Patch Manager using predefined baselines

• Create a Custom patch baseline (Critical & Medium patches by severities)

• Configure patch manager using a custom patch baseline (Linux)

• Last Lecture