Linux & Automation on Sagar Panda | DevOps & Cloud Infra Engineer

Turn Your GitHub Repository into a Self-Managing Workflow

Sun, 24 May 2026 12:45:10 +0530

Introduction

In my previous article, I wrote the fundamentals of GitHub Actions and how they can simplify CI/CD pipelines. But modern repositories need much more than just automated builds and deployments.

As projects grow, maintaining pull requests, managing issues, handling releases, updating dependencies, and reviewing security manually becomes repetitive and time-consuming.

Set Up mTLS in NGINX for Robust Web Security.

Mon, 09 Dec 2024 19:26:10 +0530

What is mTLS:

mTLS, or mutual TLS, is a security protocol that ensures both the client and the server authenticate each other when they communicate over a network. It’s like a handshake where both sides check each other’s identity, making sure that both are who they say they are.

Fortify Your Security with CrowdSec — A Quick Start Guide

Mon, 30 Sep 2024 19:26:10 +0530

What is CrowdSec:

CrowdSec is an open-source security tool designed to help protect servers and applications from cyberattacks. It works by analyzing logs from your systems to detect suspicious activity, such as brute-force attempts, and then takes action to block or prevent those threats.

The Essential Role of Exit Codes in Bash Scripting

Wed, 26 Jun 2024 19:26:10 +0530

What are exit codes in linux

In Linux and Unix-like systems, an exit code is a numeric value returned by a command or a script after completion. It indicates the success or failure of the command or script execution.

Linux Terminal tips - Part 2

Tue, 28 May 2024 19:26:10 +0530

1. Reverse search cmds:

To reuse a command, use Ctrl + R and type a few matching keywords to see the recently used cmds being shown up. The search is based on the command history.

Linux Terminal tips - Part 1

Sun, 05 May 2024 19:26:10 +0530

Introduction:

In the labyrinth of Linux commands, managing tasks can be daunting. Fear not! Here are some handy tips and tricks up your sleeve to streamline your day-to-day operations, making every task a breeze

1. Clearing terminal:

Use Ctrl + L to clean the terminal instead of typing clear every time.

If Statement - Conditional in Bash Scripting

Fri, 22 Mar 2024 19:26:10 +0530

Intro:

So, what’s the deal with ‘if’ statements? Think of them as the script’s way of making decisions. It’s like having a little script buddy that can say, “Hey, if this thing happens, do this. Otherwise, try something else!”

Variables and Math Functions in Bash

Sun, 10 Mar 2024 19:26:10 +0530

What is a variable:

A variable is a container where we can store some value which have possibility to change.

Just like any other programming language, bash also has variables, in fact we saw one default variable in the 1st chapter which is $SHELL. There are many other default variables such as $HOME, $PWD, $PATH, $USER etc.

Introduction to Shell Scripting for Beginners

Thu, 29 Feb 2024 19:26:10 +0530

What’s Shell:

In simple terms shell is a program that takes input as commands and passes the operating system (OS) to perform the desired task.

In linux we have many shell programs such as bash, zsh, fish and etc. We are going to use bash in this series.

Let’s Encrypt SSL Configuration using Certbot

Mon, 06 Nov 2023 19:26:10 +0530

What is SSL/TLS:

SSL or Secure Sockets Layer is a security protocol used to establish an encrypted connection between your web browser and a web server.

This ensures that the data transfer between you and the server can’t be read by an intruder.

A Beginner’s Introduction to GitHub Actions

Sat, 21 Oct 2023 19:26:10 +0530

Intro: GitHub action is a CI/CD platform to create build, test and deployment pipeline for our application. This is a yaml based configuration.

In this tutorial, we are going to see the basics of github action and then proceed to integrate SonarQube SAST with it in the next post.

Prerequisite:

GitHub ac

Set Up

First create a repository on github and add a simple program that prints just hello world.

Load Balancing Magic — Unleashing the Potential of NGINX.

Sat, 22 Apr 2023 19:26:10 +0530

Introduction

What is NGINX:

Nginx (pronounced engine x /ˌɛndʒɪnˈɛks/ EN-jin-EKS) is an open source HTTP web and reverse proxy server.