How to set up Elasticsearch.md

Elasticsearch Installation and Configuration Guide

Follow these steps to install and configure Elasticsearch on your system.

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1. Add Elasticsearch GPG Key

To ensure the authenticity of the Elasticsearch packages, add the GPG key:

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg

2. Install Prereqs

Ensure you have the required apt-transport-https package:

sudo apt-get install apt-transport-https

3. Add Elasticsearch Repository

Add the official Elasticsearch APT repository to your sources list:

echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-8.x.list

4. Install Elasticsearch

Update your system's package list and install Elasticsearch:

sudo apt-get update && sudo apt-get install elasticsearch

5. Enable Elasticsearch as a Service

Reload the system daemon and enable Elasticsearch to start on boot:

sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service

6. Start Elasticsearch

Start Elasticsearch:

sudo systemctl start elasticsearch.service

Stop Elasticsearch:

sudo systemctl stop elasticsearch.service

7.Modify Elasticsearch Configuration

o allow modifications to the elasticsearch.yml file, update its permissions:

cd /etc
sudo chmod 777 elasticsearch/
cd elasticsearch
sudo chmod 777 elasticsearch.yml

8. Open and edit the elasticsearch.yml file using a text editor (e.g., gedit):

gedit elasticsearch.yml

Set the required property from true to false as needed.

9. Restart Elasticsearch

Restart the Elasticsearch service:

sudo systemctl restart elasticsearch.service

10. Verify Elasticsearch Status

Check if Elasticsearch is running successfully by accessing the following URL in your browser:

http://localhost:9200

You should see a JSON response confirming that Elasticsearch is up and running.

This completes the Elasticsearch setup and configuration process.