Enable Cross-Origin Resource Sharing in Nginx Reverse Proxy

Cross-Origin Resource Sharing (CORS) is a web security feature that controls how web pages can request resources from a different domain than the one that served the web page. Without CORS restrictions, any website could make requests to other sites where a user is logged in.

This blog explains how to configure CORS when using Nginx as a reverse proxy. By handling CORS at the Nginx layer, we can centralize and simplify cross-origin access control for multiple backend applications.

Pre-requisites: Nginx Configured as reverse proxy

Creating and Testing Ingest Pipelines with Grok for NGINX Logs in Elasticsearch

The Elastic Stack is widely used for log management, monitoring, analytics, and observability. It includes several tools such as Beats, which collect logs from various systems. However, not all data in these logs is necessary for indexing. To filter, transform, and enrich documents before they are indexed, we can use ingest pipelines. In this blog, we will discuss how to create a simple ingest pipeline and test it.