LogAnalyzer

LogAnalyzer is a web interface to syslog and other network event data. It provides easy browsing, analysis of realtime network events and reporting services.
LogAnalyzer is part of Adiscon's MonitorWare line of monitoring applications.

It runs both under Windows and Unix/Linux.
The database can be populated by MonitorWare Agent, WinSyslog or EventReporter on the Windows side and by rsyslog on the Unix/Linux side.