Author: Abhilash Chauhan

Devops

Grafana Loki Tutorial: A Beginner to Intermediate Guide for Modern Log Management
ByAbhilash Chauhan May 3, 2026May 3, 2026

1. Introduction Log management today is an indispensable element of keeping applications and services running smoothly in modern infrastructure. Whether you use microservices, containers, or large Kubernetes clusters, logs are the key to uncovering failures, analysing performance problems, and figuring out user-impacting incidents before they escalate. Nevertheless, as the environment grows, traditional logging systems may…

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Interview Questions

DevOps Interview Questions: Loki vs ELK
ByAbhilash Chauhan May 1, 2026May 1, 2026

1. Introduction At the present time in the world of DevOps, monitoring, troubleshooting and system reliability are largely dependent on the gathering and examination of logs. When it comes to log management, two popular solutions often discussed are ELK stack (Elasticsearch, Logstash, Kibana) and Loki (by Grafana Labs). Although both aim at log management, they…

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Devops

Terraform Best Practices for Enterprise Deployments (2025 Edition)
ByAbhilash Chauhan April 25, 2026April 25, 2026

1. Introduction In today’s cloud-driven world, Terraform has become the go-to Infrastructure as Code (IaC) tool for enterprises looking to manage infrastructure reliably, efficiently, and at scale. Its provider-agnostic nature and declarative syntax make it ideal for orchestrating complex, multi-cloud environments. But as organizations grow, so do the challenges—scaling Terraform across multiple teams, enforcing security…

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Interview Questions

Interviews Red Flags – What Candidates Should Notice in 2026?
ByAbhilash Chauhan April 22, 2026April 23, 2026

1. Introduction Job interviews in 2026 will not be only a way for candidates to convince employers that they are the right choice for the company. Actually, it will be a two-way street that gives professionals the chance to assess if an employer is worthy of their time, skills, and long-term dedication. A lot of…

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Data Analytics

Best NoSQL Databases for AI & Machine Learning in 2025-26
ByAbhilash Chauhan April 21, 2026April 21, 2026

1. Introduction By 2026, the data needs of AI and machine learning solutions are increasing at a record speed. From model training of large language models to fueling real-time recommendation systems, contemporary AI solutions need access to huge amounts of structured, semi-structured, and unstructured data. With the proliferation of generative AI, IoT devices, and edge…

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Data Analytics

How to Choose the Right NoSQL Database in 2026
ByAbhilash Chauhan April 14, 2026April 14, 2026

1. Introduction In 2025, the data explosion from IoT devices, social media, mobile applications, and AI systems has made NoSQL databases more important than ever. Relational databases traditionally have a hard time keeping pace with the needs of today’s high-volume, fast-paced, and changing data environments. But with so many NoSQL choices today, choosing the right…

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Linux

Why set -e Doesn’t Always Exit Your Bash Script (And How It Can Break Production)
ByAbhilash Chauhan April 12, 2026April 18, 2026

1. Introduction Bash scripting is often seen as simple glue code — something you write quickly to automate tasks. But under that simplicity lies a set of behaviours that can quietly introduce bugs into production systems.One of the most misunderstood features in Bash is set -e. Many developers believe they understand it. Fewer actually do.Let’s…

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Linux

Analyze Linux Logs Like a SysAdmin: A 2026 Guide
ByAbhilash Chauhan January 4, 2026January 4, 2026

1. Introduction Linux logs are far more than plain text files scattered across a server. They represent the living memory of a Linux system, quietly recording everything that happens beneath the surface. Every crash, performance slowdown, security breach, failed login, misconfiguration, and even simple human error leaves behind a trail in the logs. When systems…

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Linux

Linux File Permissions Explained: Concepts, Scenarios & Best Practices
ByAbhilash Chauhan December 28, 2025December 28, 2025

1. Introduction Linux file permissions are one of those topics everyone thinks they understand—until a deployment fails, a service refuses to start, or a “harmless” permission change turns into a security incident. At a surface level, permissions look simple: r, w, x, chmod 755, move on. But in real systems, permissions interact with ownership, directory…

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Linux

Understanding Linux File Permissions: 2 Case Studies
ByAbhilash Chauhan December 28, 2025December 28, 2025

1. Introduction Linux file permissions are typically taught as a straightforward foundational concept—read, write, and execute (rwx) —applied to users, groups, and others. On the surface, it feels straightforward and easy to grasp. However, this simplicity quickly disappears in real-world production environments, where permission-related issues are anything but basic. In production environments, misconfigured or poorly…

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