kaustubhposhiya.hashnode.devBlue-Green Deployment for Legacy Applications on AWS EC2: A Complete GuideIntroduction Zero-downtime deployments are often considered a luxury reserved for cloud-native or containerized applications. In reality, many organizations still rely on legacy applications running directly on EC2 instances—applications that were ne...Dec 5, 2025·7 min read
kaustubhposhiya.hashnode.devZero-SSH Infrastructure: Building Secure Access with AWS SSM Session ManagerIntroduction: Why SSH Became a Liability SSH has been the default way to access servers for decades. It’s familiar, powerful, and deeply ingrained in how engineers work. But in modern cloud environments, familiar doesn’t always mean secure. A few yea...Aug 22, 2025·5 min read