---
title: "Krishna Sharma (@Krishna1911) | Hashnode"
description: "Building and learning. Read the latest articles by Krishna Sharma on Hashnode."
url: "https://hashnode.com/@Krishna1911"
---

@Krishna1911

# Krishna Sharma

@Krishna1911 · Chandigarh , INDIA · Joined June 2025

Building and learning

### [Essential psql Commands for PostgreSQL](https://kris-learn.hashnode.dev/essential-psql-commands-for-postgresql?utm_source=hashnode&utm_medium=feed)

psql is the interactive terminal client for PostgreSQL. It lets you connect to databases, run SQL queries, and use powerful meta commands for database management. Connecting to PostgreSQL (Note : here the user is named as “potatoes“, and DB as “mypo...

2 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/essential-psql-commands-for-postgresql?utm_source=hashnode&utm_medium=feed)

[Feb 4](https://hashnode.com/posts/essential-psql-commands-for-postgresql/69831bc117b0ac9e5cfdd052)

### [Choosing a Modulo to Prevent Overflow in Programming](https://kris-learn.hashnode.dev/choosing-a-modulo-to-prevent-overflow-in-programming?utm_source=hashnode&utm_medium=feed)

"Prevent overflow in large number calculations with modulo. Understand safe modulo selection, modular arithmetic, and practical programming tips."

3 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/choosing-a-modulo-to-prevent-overflow-in-programming?utm_source=hashnode&utm_medium=feed)

[Dec 12, 2025](https://hashnode.com/posts/choosing-a-modulo-to-prevent-overflow-in-programming/693babd6e0e0550e991b64e5)

### [Cookies in Web APIs: The Complete, Developer-Friendly Guide (with Go Examples)](https://kris-learn.hashnode.dev/cookies-in-web-apis-the-complete-developer-friendly-guide-with-go-examples?utm_source=hashnode&utm_medium=feed)

A complete, developer-friendly guide to web cookies—how they work, name/value structure, Domain, Secure, HttpOnly, SameSite policies, third-party cookies

5 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/cookies-in-web-apis-the-complete-developer-friendly-guide-with-go-examples?utm_source=hashnode&utm_medium=feed)

[Nov 15, 2025](https://hashnode.com/posts/cookies-in-web-apis-the-complete-developer-friendly-guide-with-go-examples/69185ac20508f099f57655e3)

### [How to Ensure Your Docker & Harbor Machine Images Are Secure](https://kris-learn.hashnode.dev/how-to-ensure-your-docker-and-harbor-machine-images-are-secure?utm_source=hashnode&utm_medium=feed)

Learn how to secure Docker images using Harbor with vulnerability scanning, signed images, immutability, and DevSecOps workflows. Improve container security

4 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/how-to-ensure-your-docker-and-harbor-machine-images-are-secure?utm_source=hashnode&utm_medium=feed)

[Nov 13, 2025](https://hashnode.com/posts/how-to-ensure-your-docker-and-harbor-machine-images-are-secure/6915839747a3d83ca05ff708)

### [⚙️ AWK Command and Its Uses in Professional Workflows](https://kris-learn.hashnode.dev/awk-command-and-its-uses-in-professional-workflows?utm_source=hashnode&utm_medium=feed)

Master text parsing, logs, metrics, and data handling from the command line. 🧭 Introduction: Why AWK Still Matters In the age of powerful observability stacks, cloud-native dashboards, and full-blown log aggregators, it’s easy to overlook the humbl...

5 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/awk-command-and-its-uses-in-professional-workflows?utm_source=hashnode&utm_medium=feed)

[Oct 29, 2025](https://hashnode.com/posts/awk-command-and-its-uses-in-professional-workflows/6901d07b84e8e19934f3f5c2)