AWS Classroom Series – 09/Oct/2021

Activities on AWS EC2

• Activity 1: Create an AWS EC2 instance with ubuntu os
  • Steps:
    • Instance type: t2.micro
    • Region: mumbai
    • Availability Zone: ap-south-1a
  • 
• Activity 2: Ensure your Ec2 instance has tags
  • Lets create the following tags
    • Name: webserver
    • env: Dev
    • project: lthrms
• Activity 3: Lets try to install apache and php in the linux instance
  • Try to execute the following commands in the ec2 instance

    sudo apt update
    sudo apt install apache2 -y
    sudo apt install php libapache2-mod-php php-mysql -y
    # Create a file in /var/www/html/info.php "<?php phpinfo(); ?>"
    echo "<?php phpinfo(); ?>" | sudo tee /var/www/html/info.php
    sudo service apache2 restart
  

  • Now navigate to the http://<publicip> and http://<publicip>/info.php
  • If you are unable to access the application, your security group might be blocking the 80 port as in this case where only 22 port is open
  • Now lets open http (tcp => port 80)
• Activity 4:
  • Make a note of public ip address and private ip address
  • Stop the ec2 instance & wait for the instance to be stopped
  • Start the ec2 instance again after the status turned to stopped (wait for 5-10 seconds)
  • Now make a note of public ip and private ip
  • Share your observations: Private ip address remained the same, where as public ip was changed.
  • In some cases we would want a static public ip address, then we need to create Elastic IP Address