Lab 1: Set Up

Task 1: Generate SSH Key

• Open Cloud Shell
• mkdir .ssh
• cd .ssh
• ssh-keygen -b 2048 -t rsa -f <<sshkeyname>>
• ls
• cat <<sshkeyname>>.pub
• copy the public key and private keys and save for later

Task 2: Set up Instances

• Create a compartment
• Navigate to Identity & Security and select Compartments
• Click create compartment
• Name the Compartment Demo and click create compartment

Task 3: Create a VCN with public and private subnets --Using Wizard

• Navigate to Networking and select Virtual cloud networks
• Select Start VCN Wizard
• Name VCN Demo_VCN
• Select Demo compartment
• Leave all other inputs as the default
• Click next
• Review and hit the Create button to create the VCN
• Click the View Virtual Cloud Network button

Task 4: Create Public Compute Instance

• Navigate to Compute and select Instances
• Select Create instance
• Name instance BastionHost
• Ensure it is in Demo compartment
• Ensure it is in public subnet 
• Paste public keys and paste the public key we created earlier
• Press create button to create instance
• Create instance

Task 5: Create Private Instance

• Name instance private-1
• Select private subnet
• Select paste public keys and paste the public key we created earlier
• Create instance

Lab 2: Secure Shell Access to Bastion Host using CLI

Task 1: SSH into Instances 

• Open Cloud Shell
• cd .ssh
• ssh -i <private_ssh_key> opc@<BastionHost_public_ip_address>
• cd .ssh
• vim private_key
• Paste private key we saved from earlier
• :wq!
• chmod 600 private_key
• ssh -i private_key opc@<private-1_private_ip_address>
• exit

• Familiarity with Oracle Cloud Infrastructure (OCI) is helpful
• Familiarity with VCN/ Networking is helpful
• Some understanding of cloud and command line terms are helpful