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Snort is one of the more popular network intrusion prevention systems (NIPS). Snort monitors network traffic and produces alerts that are generated based on signatures from community rules. HCP plays the output of the packet capture probe to Snort and whenever Snort alerts are triggered. HCP uses the kafka-console-producer to send these alerts to a Kafka topic. After the Kafka topic receives Snort alerts, they are retrieved by the parsing topology in Storm.

By default, the Snort parser is configured to use ZoneId.systemDefault() for the source `timeZone` for the incoming data and MM/dd/yy-HH:mm:ss.SSSSSS as the default `dateFormat`. Valid timezones are per Java's ZoneId.getAvailableZoneIds(). DateFormats should be valid per options listed on the following website: Below is a sample configuration with the `dateFormat` and `timeZone` explicitly set in the parser config.

"parserConfig": {
"dateFormat" : "MM/dd/yy-HH:mm:ss.SSSSSS",
"timeZone" : "America/New_York"

When you install and configure Snort, you must configure Snort to include the year in the timestamp by modifying the snort.conf file as follows:

# Configure Snort to show year in timestamps
config show_year

This is important for the proper functioning of indexing and analytics.