I write a number of little scripts every week and I am trying to share them more with the community.
I have written a simple shell script that will run on each OVA of an API Connect cluster. This script will validate all network ports are open for the node it is run on. For the script please take a look on my personal blog.
https://chrisphillips-cminion.github.io/apiconnect/2021/02/16/APIConnectVWWare-PortChecker.html
Thanks to Will Simmons for getting me an HA OVA environment to test on.