Linux Server Virtual Machines

• When we create a VM, the following resources get attached
  • Instance size:
    • number of vCPU
    • RAM in GB
    • Temp Disk Size
    • Number of Data Disks
  • Operating System: VM Image
  • Credentials:
    • User name and Password
    • Username and Key
• Lets create a key pair:
  
  
  
  
  
• Now lets create any linux (ubuntu)
  
  
  
  
• To login into linux VM, ssh -i <path to pem> username@publicip & for the vm my ssh command is ssh -i azuregenerated.pem azureuser@40.122.35.25
  
  
• Activity 1:
• Create a SSH Key and ensure you have pem file downloaded.
• Create a centos linux. username should be azuredevops.
• Login into centos linux using ssh command from your terminal and execute sudo yum install tree -y
• Activity 2:
  • Lets create a key pair on our windows/mac laptops ssh-keygen press enter for all the prompts
  • in the home directory (c:\users\<username> on windows and /home/username/ ) .ssh folder will be created with 2 files id_rsa and id_rsa.pub
  • id_rsa.pub is the public file
  • Lets import this ssh key
  • Copy the contents of the id_rsa.pub
    
  • Now create any linux and use the above imported ssh key
    
  • Once the vm is created login using ssh command ssh -i ~/.ssh/id_rsa <username>@<ipaddress>