Graylog2
Graylog is a fully integrated open source log management platform for collecting, indexing, and analyzing both structured and unstructured data from almost any source. Non Graylog-authored components Include MongoDB for metadata and Elasticsearch for log file storage and text search.
Content packs are bundles of Graylog2 input, extractor, stream, dashboard and output configurations that can provide full support for a data source. Some content packs are shipped with Graylog2 by default and some are available from graylog2.org. Packs that were downloaded from this website can be imported using the Graylog2 web interface.