---
description: >-
  Industrial communication protocol for remote monitoring and control of
  automation systems
---

# DNP3 20000 (TCP-UDP)

<pre><code><strong>Shodan:product:"DNP3"
</strong>
censys (better) (((services.port:"20000") and labels=`scada`) and services.service_name=`DNP3`) 

Nmap:

sudo nmap --script=dnp3-info -p 20000 -sV 179.133.95.177
</code></pre>
