Load Balancer

🌐 Azure Load Balancer

🔄 What is Load Balancer?

Azure Load Balancer distributes incoming traffic across multiple VMs to ensure:

• High availability

• Scalability

• Failover handling

🔧 Types

Type	Use Case
Public	Internet-facing traffic
Internal	Within Azure VNet (e.g., microservices)

🧰 Setup Steps (Portal)

1. Go to Load Balancers

2. Click Create

3. Select type: Public or Internal

4. Add Frontend IP (Public IP)

5. Add Backend Pool (Add VMs)

6. Add Health Probes (e.g., TCP on port 80)

7. Add Load Balancing Rule

   • Port 80 frontend → Port 80 backend

📌 Health Probes

Checks the availability of VMs. Common probe types:

• TCP probe

• HTTP GET probe

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