Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
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All may not be lost. Some programs by default do wide open random port assignments but have ways to lock them down for firewalls. A good exampel is NetBackup. By default it has some ports defined in /etc/services but uses random ports for responses to the defined ones. However its documentation let me figure out how to lock it down to two specific ports (an in and an out).
Have a look at the documentation for whatever you determined was using the ports and see if it talks about "firewall" configuration or considerations anywwhere.