Open Source Centralized Logging

Harvesting and Shipping

• Rsyslog http://www.rsyslog.com/doc/manual.html

Guis And Reporting

• Kibana http://rashidkpc.github.com/Kibana/about.html
• Greylog2 http://graylog2.org/
• Logstash http://logstash.net/

Parsing

• Logster => Graphite: http://www.kickflop.net/blog/2012/03/30/any-metric-graphing-with-graphite-and-syslog/