Awk : Variables and Functions

Awk as we all know is an interpreted programming language which is used for text processing and editing, manipulating some data in an easy and time saving way. We will go through the context of Awk in a series of two parts and see its power. Now, lets dive into the Awk world. Pattern matching and printing: We generally use...



VPC Explained Part-2 : VPC with Public and Private subnets.

In my last blog we saw how a VPC with single public subnet is implemented. And now in this blog we will go through the second scenario of aws VPC i.e. a VPC with public and private subnets. Let's create a VPC with two subnets , Public and Private. 1. Login to your Amazon account and click on VPC in the services drop down to move...



VPC Explained Part -1 : VPC with a Public Subnet Only

A virtual private cloud is a virtual network that is logically isolated from other virtual networks in the AWS cloud. One can launch AWS resources in a virtual network that you define and customize it accordingly at the time of vpc creation. Basically, VPC is a virtual network that resembles a network in your own data center, with the...



Amazon Relational Database Service (RDS) in Amazon Virtual Private Cloud(VPC) subnet

Few days back, I was trying to instantiate an RDS instance in Private subnet of a non-default  VPC ( Custom VPC ). But unfortunately the launch wizard was not letting me to choose the new non-default VPC. This problem can put you in worse situation in security terms as the wizard will not let you choose your respective VPC and hence...