Shameem Abdul Salam

Platform and DevOps engineer with extensive experience designing, operating, and scaling AWS-based systems. Recent focus: scientific batch workloads on AWS Batch, multi-region Terraform, hybrid integrations for laboratory data platforms, and regulated-environment operations (KMS, IAM, observability). Strong background in CI/CD, Docker, ECS, GitLab/GitHub pipelines, e-commerce infrastructure, cloud cost optimization, and technical leadership.

GitHub Actions to ECR to ECS: a Deployment Checklist

This post is for teams already running workloads on Amazon ECS who want a reliable GitHub Actions pipeline without reinventing the wheel each release. It is not a greenfield Kubernetes guide, and it assumes you have a working cluster, service, and task definition—not a blank AWS account.

The Blog Is Back on shameem.in

I used to write about Linux, Drupal, caching, and open-source tooling on LinfoPage.Com and my Blogger site. Those posts are from a different chapter — support engineering, LAMP stacks, Varnish, and early Raspberry Pi days — but they are still useful reference material.

Bug in Bash Shell Creates Big Security Hole on UNIX/Linux

A security vulnerability in the GNU Bourne Again Shell (Bash) — the command-line shell used in many Linux and Unix operating systems — could leave systems open to exploitation by specially crafted attacks.

How to Improve the Performance of Drupal Sites

A site is only as fast as its last mile connectivity. If users access a site from a slow connection, even a site capable of responding quickly to requests will appear to be slow. A content management system like Drupal throws in additional challenges to the Web architect in improving performance because, typically, the Apache process takes up more space than a site serving traditional HTML or PHP pages. Read on to take a look at the various external factors that impact performance, and explore ways to mitigate them.

Cache HTTP Reverse Proxy Using Varnish on Ubuntu with Drupal 7

Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 – 1000x, depending on your architecture.

Busting The Biggest Myths About Linux

For many years Windows was the only operating system for many computer users. In fact, a majority of these users even didn’t know that there was any other OS in the world. And for this reason, Linux, the free and open-source operating system was totally alienated. And slowly when people started to hear about the Linux based OS, many misconceptions started to cloud the free flow of the free and open source OS. So here we are trying to put some light on the real facts by killing the popular misconceptions!

How Linux is Built

Hi Guys, I am back to blogging after a short time. I happy to inform you all that I have got a Job in a company as Open-Source Support Engineer by fulfilling my ambition of placing my career in Open-Source.