AWS EC2 is an Amazon web service that provides configurable compute capacity in the AWS cloud.
It provides infrastructure as a service (Iaas).
On a single physical machine, we can run multiple small computers, which are nothing but instances.
AWS EC2 instances likewise, they can eliminate our need to buy or use expensive equipments and machines.
Amazon EC2 is very useful to use because it enables users to scale up or down easily.
EC2 instances have preconfigured templates of Amazon machine images. We can use these images for servers and operating systems in the virtual environment.
EC2 instances are extremely safe to use, with a secured login with keepairs.
We can use instances as per our needs as various instances are present.
EC2 instances also provides a firewall to the users that specify ports, protocols & source IP range that reaches your instance. this makes our instances safe & secure, and these settings can be configured using the security group.
Also store our instance data in the storage volume that is provided.
If we want to provide regular storage to store our data, then we need to configure amazon, EBS volumes with our EC2 instances.
By default, the instances which we create, they have dynamic IP. We could also provide an instance with a static IP using elastic IP addresses.
An EC2 instance can be accessed remotely using an SSH client, secure login information is stored in key pairs, which consist of a public key (stored by AWS) and a private key (stored by you).
The benefits of using AWS instances
Pay as you go Model.
Easy to use.
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auto scaling :
Auto scaling allows us to automatically adjust the number of compute instances in an instant spool or their lifecycle state.
This allows instances to provide consistent performance for the end users during times of high demand, while also lowering your cost during times of low demand.
In auto scaling, we can scale up or we can scale down, as per website traffic.
Pay as you go Model :
This feature makes it very cheap to use AWS instances
Users need to pay only for the resources that they use.
Increase reliability :
The Amazon EC2 cloud system is available all across the world, allowing our company to grow significantly.
Easy to use :
We can create easy, true instances easily by navigating to the easy to section in the console.
We can even create instances quickly using pre-configured templates and images, and we can quickly deploy our instances in a few minutes.avigating to the easy to section in the console.