AWS Classroomnotes 06/Jul/2023

AWS Compute – Elastic Cloud Compute (EC2)

• This is a service for creating virtual servers in AWS
• EC2 virtual servers can run
  • linux based virtual machines
  • windows based virtual machines
  • mac based virtual machines
• AWS is present globally in various regions Refer Here
• AWS Virtual Machines are referred as EC2 instances
• AWS will create necessary virtual hardware for the vm to run which is referred as ec2 instance
  
• To login into ec2 instance we need credentials, AWS by default supports only key based authentication
• AWS needs public key to establish ssh/logins.
  
• Creating a key pair in AWS
  
  
  
  
  
  
• Importing a Key pair to AWS
  • Generate a keypair Execute ssh-keygen. This creates two files in your HOME-DIR/.ssh with names id_rsa and id_rsa.pub
  • HOME DIRECTORY:
    • Windows: C:\Users\<user-name>
    • Linux: /home/<user-name>
    • Mac: /Users/<user-name>
  • Import into AWS
    
    
    
    
• AWS segregates instances by
  • purpose:
    • General Purpose
    • Compute Optimized
    • Memory Optimized
    • Accelarated Computing
    • Storage Optimized
    • HPC
  • Family: Each Family represents the hardware configurations. Family will have generations of hardware evolution
  • Size: This speaks about RAM, CPU, network speed