Syslogd2
High capacity syslog data collection, filtering, and management.
... services for host-name resolution.
Syslogd2 easy-to-use filters use string-matching to select messages which can then be modified, dropped, kept or re-routed (changed to new facilities).
Filters are applied to inputs, outputs or both to control msg-routing and network load.
Syslogd2 can spool messages on network failure and forward the spooled traffic on network restoration.
Please see the wiki on this project site for more on the design features, goals and perspectives of Syslogd2 ...