Category: Tech Notes
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How the Shell Turns Your Words Into Commands (Linux for Beginners, Part 3)
What bash actually does between you pressing Enter and a program running: expansions, quoting, PATH lookup, and pipes, shown with real commands you can follow on any Linux box.
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The Linux Filesystem Hierarchy, Directory by Directory (Linux for Beginners, Part 2)
Linux has one directory tree, not drive letters. A practical tour of the top-level directories, absolute versus relative paths, the /usr merge, and how to spot inode exhaustion.
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Why Linux Runs the World, and Where You Already Use It (Linux for Beginners, Part 1)
Linux quietly runs most servers, every top supercomputer, and most phones. Part 1 shows where it hides, the kernel-versus-distribution split, and how to identify any Linux box you land on.
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Your DevOps Roadmap and What to Learn Next (DevOps for Beginners, Part 18)
Your DevOps roadmap: where you are after the foundations, how to pick a specialty, becoming T-shaped, how to keep learning, the career ladder, and a ninety day plan.
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Prepare for the DevOps Interview and Land the Job (DevOps for Beginners, Part 17)
How to prepare for a DevOps interview: the stages, the questions juniors get, answering troubleshooting scenarios, telling your project story, and why honesty beats bluffing.
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Build a DevOps Home Lab: Practice the Whole Stack for Free (DevOps for Beginners, Part 16)
Build a DevOps home lab for free: one end to end project with Git, Docker, a CI pipeline, a local Kubernetes cluster, and monitoring, plus how to keep it cheap and disposable.
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Build Security Into the Pipeline From the Start (DevOps for Beginners, Part 15)
DevSecOps for beginners: shift security left, scan dependencies and secrets in the pipeline, apply least privilege, and tune for signal so security becomes a habit.
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Cloud Basics Every DevOps Beginner Needs (DevOps for Beginners, Part 14)
Cloud basics for DevOps beginners: service models, compute, storage and networking, regions and zones, the shared responsibility model, managed services, and cost.
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Logging and Alerting: Reading the Story a System Tells (DevOps for Beginners, Part 13)
Logging and alerting for beginners: structured logs, log levels, centralized search, tracing a request with correlation ids, and why you should log less and never log secrets.
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Monitoring and Observability, and How to Know a System Is Healthy (DevOps for Beginners, Part 12)
Monitoring and observability for beginners: the four golden signals, metrics, Prometheus and Grafana, turning a metric into an alert, and why you alert on symptoms.
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Configure Servers Automatically With Ansible (DevOps for Beginners, Part 11)
Ansible for beginners: how agentless configuration management sets up servers over SSH with YAML playbooks, why idempotence matters, and how it pairs with Terraform.
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Infrastructure as Code: Build Servers From Files, Not Clicks (DevOps for Beginners, Part 10)
Infrastructure as Code explained with Terraform: describe servers in files, use the plan and apply loop, understand the state file, and avoid drift and lock conflicts.
Architect’s Toolkit
PJ’s Tools
VMware Cloud Foundation
- VCF Documentation
- VCF 9 Planning & Preparation Workbook
- VCF Bill of Materials (BoM)
- VMware Compatibility Guide
- VMware Interoperability Matrix
- VMware Configuration Maximums
- VMware Ports & Protocols
- VMware Hands-on Labs
- RVTools Download
Nutanix
AI & Cloud-Native Platform
- NVIDIA Build (Model Catalog)
- NVIDIA AI Enterprise Reference Architecture
- NVIDIA NIM Performance Benchmarking
- NVIDIA NGC Catalog
- NeMo Microservices Helm Chart
- Helm Charts Repository
- Hugging Face Models
Architecture & Design
About the Author
Dr Pranay Jha
Dr. Pranay Jha is a Cloud and AI Consultant with 18+ years of experience in hybrid cloud, virtualization, and enterprise infrastructure transformation. He specializes in VMware technologies, multi-cloud strategy, and Generative AI solutions. He holds a PhD in Computer Applications with research focused on Cloud and AI, has published multiple research papers, and has been a VMware vExpert since 2016 and a VMUG Community Leader.
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