The video tutorial explains how to publish server logs into an Elasticsearch cluster and addresses the limitations of the current architecture. It introduces Beats, a lightweight utility in the Elastic Stack, which helps overcome these limitations by acting as an intermediary between web servers and Logstash. The tutorial emphasizes the ease of setting up and using Beats, providing a practical understanding of its integration with Logstash and Elasticsearch.

Describe how Beats can be set up to work with Logstash and Elasticsearch.

What is the benefit of using an intermediate layer like Logstash when publishing log data?