I have been working on different MTAs since the last couple of years. This time, the Exim4 use-case which I encountered was to sends emails using premium Email Service Provider. Use-case: We were supposed to send thousands of emails like auto-reply emails or newsletters from our dedicated server(Ec2 machines) inside the private subnet. I chose to […]
What is Kubernetes / K8s? The name Kubernetes originates from Greek, meaning “helmsman” or “pilot”, and is the root of “governor” and “cybernetic”. The Kubernetes is an open-source project started by Google in 2014. It helps in automating deployment, scaling and operations of application containers across clusters of hosts. In this blog, we will go […]
I came across a scenario where we have to stream Videos On Demand (VOD) using Amazon CloudFront and Amazon Simple Storage Service (S3). The on-demand streaming is done using Cloudfront Content Delivery Network (CDN). The videos to be served are stored on Amazon S3. I have designed a secure architecture for the same setup. The […]
Prerequisite: It is recommended to have basic understanding of CHEF and its components. In case you want to go through the basics of CHEF click here Use Case: If you are already using CHEF in your environment, you often write new cookbooks and for testing those you either need to start new virtual machines or […]
In my last couple of blogs, I talked about Docker monitoring, why I would need Docker monitoring and how I can monitor Docker containers using AWS, Ruxit and Sysdig. Today, we are going to talk about another such tool which most of us already know about which also provides Docker monitoring. The tool is New […]
With the large scale adoption of the Docker by the developers, it becomes necessary to provide a proxy cache server for Docker registry where Docker image once downloaded from Docker Hub can be retrieved again from the local proxy server. This saves us a lot of time from downloading the image again and again from […]
Capistrano is a tool to perform tasks on multiple servers over SSH. We can use Capistrano to deploy code on multiple servers running under auto-scaling. Below is one of the use cases which I solved with the help of Capistrano and bash scripts. I’ve used Capistrano for code deployment and its management using bash shell […]
Application SecurityAWSTechnology
I was recently searching for something on Google and came across this instance of what might be a logical vulnerability prevailing across multiple web applications. I was searching for publicly accessible Jenkins console through Google Dorking. My search query listed some of the websites that had Jenkins as a part of their domain name. Although this itself […]
Sysdig has been one of the most advanced cloud-based tools for monitoring your infrastructure. So, talking about Docker monitoring, Sysdig gives us a lot of insights about our containers, few of which we will be talking about in this blog. Docker is the most widely used and trending tool when it comes to DevOps. USE-CASE […]