May 26, 2018

Small, fast, and secure NetFlow collector

flowd is a small, fast and secure NetFlow collector. It offers the following features

* Understands NetFlow protocol v.1, v.5, v.7 and v.9 including IPv6 flows
* Supports both IPv4 and IPv6 transport of flows
* Secure flowd is privilege separated to limit the impact of any compromise
* Supports filtering and tagging of flows, using a packet filter-like syntax
* Stores recorded flow data in a compact binary format which supports
  run-time choice over which flow fields are stored
* Ships with both Perl and Python interfaces for reading and parsing the
  on-disk record format
* Is licensed under a liberal BSD-like license

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