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NETPORT_README.md

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NetPort Input Plugin

This plugin collects TCP port connections state and UDP socket counts by using lsof.

Configuration:

# Collect TCP port connections state and UDP socket counts
[[inputs.netport]]
  ports = [22, 2003]

Measurements:

Supported TCP port Connection states are follows.

  • established
  • syn_sent
  • syn_recv
  • fin_wait1
  • fin_wait2
  • time_wait
  • close
  • close_wait
  • last_ack
  • listen
  • closing
  • none

TCP port Connection State measurements:

Meta:

  • units: counts

Measurement names:

  • tcp_established
  • tcp_syn_sent
  • tcp_syn_recv
  • tcp_fin_wait1
  • tcp_fin_wait2
  • tcp_time_wait
  • tcp_close
  • tcp_close_wait
  • tcp_last_ack
  • tcp_listen
  • tcp_closing
  • tcp_none

If there are no connection on the state, the metric is not counted.

UDP socket counts measurements:

Meta:

  • units: counts

Measurement names:

  • udp_socket

output sample

> netport,host=cz,port=22 tcp_close=0i,tcp_close_wait=0i,tcp_closing=0i,tcp_established=1i,tcp_fin_wait1=0i,tcp_fin_wait2=0i,tcp_last_ack=0i,tcp_listen=2i,tcp_none=0i,tcp_syn_recv=0i,tcp_syn_sent=0i,tcp_time_wait=0i,udp_socket=0i 1647741023000000000
> netport,host=cz2,port=2003 tcp_close=0i,tcp_close_wait=0i,tcp_closing=0i,tcp_established=0i,tcp_fin_wait1=0i,tcp_fin_wait2=0i,tcp_last_ack=0i,tcp_listen=1i,tcp_none=0i,tcp_syn_recv=0i,tcp_syn_sent=0i,tcp_time_wait=0i,udp_socket=1i 1647741023000000000