Elasticsearch 7 and Elastic Stack - In Depth and Hands On! - Installing Logstash

This video tutorial guides viewers through the process of installing and configuring Logstash. It covers setting up the necessary repositories, ensuring Java Development Kit (JDK) is installed, and writing a configuration file for Logstash. The tutorial also demonstrates how to download and use an Apache access log for testing. Finally, it explains how to configure Logstash to process and output data to Elasticsearch and the console.

What command is used to update the repository before installing Logstash?

• sudo apt install JDK

• sudo update repository

• sudo install logstash

• sudo apt-get update

Why is it necessary to install a Java Development Kit (JDK) for Logstash?

• JDK is optional for Logstash installation.

• Logstash requires a JDK for its bundled plugins.

• Logstash does not come with its own JDK.

• JDK is needed for Elasticsearch, not Logstash.

What is the purpose of the input block in a Logstash configuration file?

• To define where Logstash sends its output data.

• To specify the plugins used for filtering data.

• To define where Logstash looks for its input data.

• To configure the Java Development Kit.

Which built-in pattern does Logstash use to extract data from Apache access logs?

• Apache Log Extractor

• Combined Apache Log

• Logstash Apache Filter

• Access Log Parser

What command is used to download the Apache access log for Logstash?

• curl download access log

• download log from Apache server

• wget media sundog softcom/access log

• fetch access log from sundog

In the Logstash configuration, what is the purpose of the Ruby Debug codec?

• To format the output for the console

• To debug Java errors

• To send data to a remote server

• To format the output for Elasticsearch

What should you do if you encounter errors while running Logstash?

• Reinstall Logstash

• Check for typos in the configuration file

• Restart the computer

• Update the Java Development Kit