This document provides step-by-step instructions to set up Elasticsearch on Linux and Windows, along with common operations such as creating an index, syncing data, and searching data.

1. Prerequisites

• Java (Elasticsearch 8.x comes with bundled JDK – no separate Java install required)

• Minimum 4 GB RAM (recommended)

• Open ports: 9200 (HTTP), 9300 (Transport)

2. Elasticsearch Installation

2.1 Linux Setup (Ubuntu / RHEL)

Step 1: Download Elasticsearch

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.x.x-linux-x86_64.tar.gz

Step 2: Extract the Archive

tar -xzf elasticsearch-8.x.x-linux-x86_64.tar.gz
cd elasticsearch-8.x.x

Step 3: Configure Elasticsearch

Edit config/elasticsearch.yml

cluster.name: elasticsearch-cluster
node.name: node-1
network.host: 0.0.0.0
http.port: 9200
discovery.type: single-node

Step 4: Start Elasticsearch

./bin/elasticsearch

Step 5: Verify Installation

curl http://localhost:9200

2.2 Windows Setup

Step 1: Download Elasticsearch

• Download the Windows ZIP from Elastic official site

Step 2: Extract ZIP File

• Extract to a directory (example: C:\elasticsearch)

Step 3: Configure Elasticsearch

Edit config\elasticsearch.yml

cluster.name: elasticsearch-cluster
node.name: node-1
network.host: localhost
http.port: 9200
discovery.type: single-node

Step 4: Start Elasticsearch

bin\elasticsearch.bat

Step 5: Verify Installation

Open browser or Postman:

http://localhost:9200