This guide walks you through four progressive stages—basic configuration, SSL encryption, SCRAM authentication, and combined SSL+SASL—showing how to harden Kafka with certificates, keystores, and client settings to achieve financial‑level protection.
This tutorial explains how to set up DNS records, install Postfix and Cyrus‑SASL, configure authentication, create necessary configuration files, add users, and test SMTP on an Ubuntu server to reliably send emails without landing in spam folders.
This guide explains Kafka's authentication and authorization mechanisms, covering SASL/PLAIN and SASL/SCRAM setups, JAAS file creation, server property configuration, ACL management, and provides complete Java producer and consumer examples for secure communication.
This guide walks through building a secure, production‑grade logging pipeline by deploying an ELK stack (Elasticsearch, Logstash, Kibana) with X‑Pack security, a Kafka message queue with SASL authentication, and Filebeat agents, covering environment preparation, certificate generation, configuration files, and startup scripts.
