Apps to Capturing logs

Nagios Log Server is a powerful, enterprise-class log management application that provides organizations with the ability to quickly and easily manage, monitor, analyze, and alert on server and device log data. It centralizes log data from various sources, making it simple to identify security issues, operational problems, and infrastructure failures.

Graylog is a powerful, open-source, centralized log management platform designed for collecting, indexing, and analyzing log data from various sources. It helps organizations gain operational visibility, identify security threats, and troubleshoot issues efficiently.

Fluentd is an open-source data collector that provides a unified logging layer, enabling you to collect, parse, transform, and output logs from various sources to multiple destinations. It is written in Ruby and highly pluggable.

Logstash is a powerful open-source data ingestion and transformation pipeline, part of the Elastic Stack. It allows users to collect data from diverse sources, perform real-time transformations, and ship it to a multitude of destinations, making it a cornerstone for centralized logging and data analysis.