Azure's Network Watcher, introduced in March 2017, is a feature that enhances network traffic monitoring and analysis capabilities within Azure's cloud services, offering tools for visualization and troubleshooting. A key component, the Network Security Group (NSG) Flow logs, captures detailed traffic information such as source and destination IPs, ports, protocols, and whether traffic was permitted or denied. These logs can be stored in an Azure storage account and then processed using the ELK Stack, specifically through Logstash, to be indexed in Elasticsearch for deeper analysis. The article provides a step-by-step guide to configuring Logstash to collect, parse, and output these logs for further examination in Kibana, including visualizations and alert setups for proactive monitoring. By integrating this data into the ELK Stack, users can leverage Kibana's capabilities to identify trends and anomalies in network traffic, enhancing their ability to maintain security and performance within Azure environments.