Basically, we've put these all on a server behind a firewall to keep it safe. However, it seems at least port 7272 is giving me a headache. (Seems there are some firewall settings that dislike the port.)
As they are all Manage Engine products, and are accessed by different hostnames, I was hoping there is something similar to apaches Name Virtual Hosts we could use in such a scenario. Where the name used to request the site is what determined what service one got, not the port number.
So we could use https://pmp.domain.com to access Password Manager Pro, https://ada.domain.com and https://adm.domain.com to access AD Audit, and AD Manager respectively.