Setting up and securing a Linux VM with SSH key authentication in Azure is made easy with these step-by-step instructions.Step 1: Set up an Azure account.Step 2: Create a Linux VM by configuring basic settings, including generating an SSH key pair.Step 3: Find the public IP address of the VM.Step 4: Connect to the Linux VM using SSH with the private key file.Step 5: Manage the VM by running Linux commands.