View Log Data

This section describes how to view the logs NetMon generates in real time. By viewing log data, you can verify that certain processing components are working.

1. Open the NetMon Web Management interface.
2. On the top navigation bar, click Logs.

3. Click one of the log tabs.

   

   If you want to clear the data in the screen, click the Reset button.

   The following table describes the logs. All data is shown in real time.

   Log Data	Description
   Engine	Displays a log for NetMon's packet-processing component (the Engine), which collects and reads the network traffic and processes it.
   Logger	Displays a log for the component that sends data through the Rule Engine threads.
   Manager	Displays a log for NetMon's component that manages other services, such as the Engine and the Logger.
   Indexer	Displays a log for the component that indexes metadata in Elasticsearch.
   Percolator	Displays a log for the process which tests for alarm conditions using the Elasticsearch percolate function.
   Cassandra	Displays the raw log output of NetMon's database.
   Metrics	Displays the log for the process used to generate statistical data for NetMon's Diagnostics page.
   Maintenance	Displays the log for the process used to maintain NetMon's Elasticsearch indices.
   License Server	Displays the log for the process that maintains the license state of the NetMon distribution.
   Website Error	Displays an error log for NetMon's web server component.
   Website Access	Displays a log for user activity by IP address. This log activity constantly refreshes.
   Elastic Search	Displays an activity log for the metadata storage engine.
   Flow Rules	Displays a log of Deep Packet Analytics Rules that have run at the flow level.
   Packet Rules	Displays a log of Deep Packet Analytics Rules that have run at the packet level.
   Audit	Displays event and diagnostic logs for NetMon. For more information, see Diagnostic Messages.
   File Extraction	Displays log messages related to file extraction in NetMon.