AWS Load Balancing, File Migration

It distributes incoming application traffic across multiple targets

💡

Load Balancer only has DNS. It doesn’t have IP Address

Creating and Connecting to EC2 instances (2)

Creating two Amazon Linux Instance

Select a machine → Click connect → Copy given example → write in git bash

Install httpd web server
```
yum install httpd
```

Check status of server
```
systemctl status
```
```
systemctl start httpd
```

Go to www directory and change index.html

cd /var/www/html/

echo "This is First Server" > index.html

DO THE SAME FOR SECOND SERVER

Load Balancing

Create group and attach machines to it

Load Balancing → Target Groups → Create target groups

Target type: Instances

Give Target group name, Protocol, IP address type, VPC, Protocol version

Configure Health Check settings

Select both servers and click Include as pending below → Create Target Group

Creating Load Balancers

Types of Load Balancer:

Application - works on layer 7

Network - works on layer 3

Gateway

Classic

Steps:

Click on load balancer in side bar → create load balancer

Application Load Balancer → Name it → Network Mapping → Security Groups → Listeners and routing → Summary → Create Load Balancer

Copy DNS Name and write in browser
http://lb1amazonlinux-1771573453.ap-south-1.elb.amazonaws.com/

Check health of machines

File Migration

Same can be done for images, pdfs