What is Logstash?

Logstash is an open-source data processing pipeline that allows you to collect data from various sources, transform it into a structured format, and forward it to multiple output destinations. It is a key component of the Elastic Stack, which includes Elasticsearch, Kibana, and Beats. Logstash is widely used for monitoring and logging, incident response, and retention policy management.

Main Features of Logstash

Logstash has several key features that make it a popular choice for enterprise telemetry:

• Input plugins: Logstash supports a wide range of input plugins that allow you to collect data from various sources, such as logs, metrics, and APIs.
• Filter plugins: Logstash provides a range of filter plugins that enable you to transform and process your data in real-time.
• Output plugins: Logstash supports multiple output plugins that allow you to forward your data to various destinations, such as Elasticsearch, Redis, and MongoDB.

Installation Guide

Prerequisites

Before you can install Logstash, you need to ensure that your system meets the following prerequisites:

• Java 8 or later
• At least 4 GB of RAM
• At least 2 CPU cores

Step-by-Step Installation

Here is a step-by-step guide to installing Logstash:

1. Download the Logstash installation package from the official Elastic website.
2. Extract the contents of the package to a directory of your choice.
3. Open a terminal or command prompt and navigate to the Logstash directory.
4. Run the command `bin/logstash -e