AWS Bootstrapping
Bootstrapping means running commands when a machine starts. The script is run only once when the machine starts and never again. It is done by running EC2 user data scripts.…
IAM on AWS
AWS IAM (Identity and Access Management) is a service provided by Amazon Web Services that enables users to manage access and permissions for AWS resources. With IAM, users can create…
ELB: Amazon Elastic Load Balancer
The Elastic Load Balancer (ELB) distributes traffic across different instances. It spans the region and uses ever Availability Zone (AZ). ELB is inherently secure, resilient, scalable but the client is…
EBS: Amazon Elastic Block Storage
To understand Elastic Block Storage, we need to first understand what block storage is and how if differs from object storage. Block storage breaks data into block and then stores…
Amazon Routing and Firewalls
Routing allows traffic in and out of a VPC. An Internet Gateway (IGW) allows two different networks to share traffic. The networks would be your VPC and another VPC or…
Simple explanation of Amazon Virtual Private Cloud (VPC)
A Virtual Private Cloud (VPC) is a logically isolated section of Amazon cloud. You can create your own VPC in AWS cloud. With Amazon VPC, you get full control over…
What is well-architected infrastructure
A well-architected infrastructure is reliable, secure, performant, cost effective, and operationally excellent. In infrastructure, reliability mostly refers to fault tolerance, availability, and durability. A fault tolerant system is able to…
Can I drive on Amazon Route 53
No. Route in Route 53 refers to routing traffic, not an Interstate highway. Amazon Route 53 is a globally distributed Domain Name Service (DNS). DNS is a web service designed…
How traffic is routed and access is controlled in AWS
Routing is the process of directing traffic flow between networks or VPCs. Routing also connects a VPC to the Internet. Routing defines how traffic flows from one network to another.…
Overview of Key AWS Services
Following is a snapshot of key AWS services: Compute Amazon EC2: virtual computing AWS Lambda: serverless computing Amazon Elastic Container Service ECS: containerized computing Storage Amazon Elastic Block Store (EBS):…