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Continuous Deployment using GitHub Actions

Leave a Comment / JavaScript, System Design / By lahin

In this tutorial we will learn about Continuous Deployment for a Node(.js)/Express(.js) app inside EC2 instance using GitHub Actions. First create an EC2 instance with Ubuntu (linux) Operating System.

Integrate and run a Node and React application to AWS EC2 instance

Leave a Comment / Computer Networking, JavaScript, NodeJS, React / By lahin

In this blog post we will learn how to integrate a Node.js and a React app to AWS EC2 instance via NGINX server.

What is B-tree & B+ tree in DBMS?

2 Comments / Computer Science, Database / By lahin

In this post we will go through B-tree & B+ tree, how these fit in DBMS.

Understand Database Replication

Leave a Comment / Database, System Design / By lahin

Understand Database Replication is crucial task for both performance and reliability.

CIDR notation and Subnetting in AWS VPC

Leave a Comment / Computer Networking, Computer Science / By lahin

In this post we will learn about CIDR notation and Subnetting in AWS VPC

Primary Index and Cluster Index

Leave a Comment / Computer Science, Database / By lahin

In this post we will go through Primary Index, Cluster Index.

Database Indexing makes DB Query faster

4 Comments / Computer Science, Database / By lahin

Database Indexing is one of the most common technique to make database query faster. In this post we will learn about how indexing makes DB Query faster.

JavaScript Promises Tips & Tricks

Leave a Comment / JavaScript / By lahin

Understand some JavaScript Promise Tips & Tricks.

What is IPv4 IP Address?

Leave a Comment / Computer Networking, Computer Science / By lahin

In Computer Networking understand the IP or Internet Protocol Address is crucial. If you are a Backend Developer or DevOps Engineer this is essential topic to understand.

Undo or Discard – git commands

Leave a Comment / git / By lahin

Most of the time we need to undo something that we changed in our code. In this tutorial we will learn commands of how to undo something.

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