Day 24: Securing Virtual Machine SSH Access
🔐 Day 24: Securing Virtual Machine SSH Access | 100 Days of Cloud (Azure)
Welcome to Day 24 of the 100 Days of Cloud (Azure) series! In this lab, you’ll set up a Virtual Machine and configure secure, password-less SSH access using key-based authentication.
📌 Lab Objective:
Create an Azure VM and enable secure SSH access using an SSH key from the azure-client host.
🛠️ Task Requirements:
VM Name: nautilus-vm
Region: westus
Size: Standard_B1s
User: azureuser
Create SSH key (if not exists)
Enable password-less SSH access
💻 Step-by-Step Solution (Azure CLI):
🔹 1. Check/Create SSH Key (on azure-client)
ls /root/.ssh/id_rsa
👉 If not present:
ssh-keygen -t rsa -b 2048 -f /root/.ssh/id_rsa -N ""
🔹 2. Create Virtual Machine
az vm create \
--resource-group kml_rg_main-95e445e2c27d4ea6 \
--name nautilus-vm \
--location westus \
--image Ubuntu2204 \
--size Standard_B1s \
--os-disk-size-gb 30 \
--storage-sku Standard_LRS \
--admin-username azureuser \
--ssh-key-values ~/.ssh/id_rsa.pub
🔹 3. Get Public IP
az vm show \
--name nautilus-vm \
--resource-group kml_rg_main-95e445e2c27d4ea6 \
--show-details \
--query publicIps \
--output tsv
🔹 4. Verify SSH Access
ssh -i ~/.ssh/id_rsa azureuser@PUBLIC-IP
🔍 Expected Outcome:
✅ SSH login works without password
✅ Secure key-based authentication enabled
📚 What You’ll Learn:
SSH key generation and usage
Creating Azure VMs via CLI
Configuring secure SSH access
Password-less authentication setup
Cloud security best practices
🌟 Why This Lab Matters:
SSH key-based authentication is a critical security standard in cloud environments, widely used in DevOps automation and infrastructure management.
🎯 Series: 100 Days of Cloud (Azure)
Build real-world cloud skills step by step.
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