Logstash is an open-source, server-side data processing pipeline that ingests, transforms, and forwards data to a variety of outputs. It is a powerful tool that helps users to centralize and process logs, metrics, and events from diverse sources in real-time. By focusing on scalability, ease of use, and extensibility, Logstash provides an efficient solution for managing and analyzing large amounts of log data.

Features of Logstash:

• Logstash enables users to collect, parse, and filter logs from various data sources, making log management and analysis simple and efficient.
• It provides powerful plugins for data transformation, including filters for parsing structured and unstructured data, transforming it into useful information.
• Logstash allows seamless integration with Elasticsearch and other databases for storing and querying data, making it a key component in the ELK stack.
• Written in Java, Logstash is highly scalable and supports a wide range of input, filter, and output plugins, ensuring flexibility in handling different use cases.
• It has an easy-to-use configuration syntax that simplifies the creation of data pipelines for both beginners and advanced users.
• Logstash supports various output destinations such as Elasticsearch, Kafka, and files, making it versatile for different types of data analysis and storage.
• The framework is highly extensible, allowing developers to create custom plugins to extend Logstash's functionality to meet specific needs.

To check the version of Logstash, run:

 /usr/share/logstash/bin/logstash --version 

Disclaimer: Logstash® is an open-source project under the Apache License 2.0. It is not affiliated with, endorsed by, or sponsored by any company. Logstash is provided "as is," without any warranty, express or implied. Users are responsible for understanding and complying with licensing terms and regulations while using Logstash.