Introduction

Netcap now support exporting prometheus metrics about its go runtime, the collection process and the audit records itself. This feature can be used with the net.export tool.

Configuration

Metrics are served by default on 127.0.0.1:7777/metrics. Configure a prometheus instance to scrape it:

# reference: https://prometheus.io/docs/prometheus/latest/configuration/configuration/
​
global:
  scrape_interval: 15s
  scrape_timeout: 15s
  #evaluation_interval: 15s
​
scrape_configs:
  # process_ metrics
  - job_name: netcap
    metrics_path: /metrics
    scheme: http
    static_configs:
      - targets:
        - 127.0.0.1:7777

Usage

Export a PCAP dumpfile and serve metrics .

$ net.export -r 2017-09-19-traffic-analysis-exercise.pcap

Capture and export traffic live from the named interface:

$ net.export -iface en0

Export a specific audit record file:

$ net.export -r HTTP.ncap.gz

Export all audit record files in the current directory:

$ net.export .

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