#71 - Checking TCP/UDP ports and applications

In industrial networking it is important to know the TCP/UDP protocols that the devices are using to communicate. In this post two interesting websites are shown that can be useful during configuration of the rules in a firewall and to increase the cyber security of the factory.

On this link, it is possible to filter by the keyword or port number.
For example: 
"rockwell" gives the following port numbers: 1184, 2221, 2222, 2223, 4444, 4445, 4446, 17185, 44818. It is also possible to insert directly the desired port number in the search box.

On this link, the most commons ports are shown for a SCADA Ignition project.