Introduction ============ db-parser() is a feature of syslog-ng that lets users classify messages and to extract free-form human readable information into structured name-value pairs. db-parser() uses a database of log patterns, described in a set of external XML files, read by syslog-ng upon startup. This is collection of useful patterndb sets. For more information see the Pattern DB site: https://www.balabit.com/network-security/syslog-ng/opensource-logging-system/features/pattern-db