The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
If you consider hardening the system, you should consider the following hardening guidelines:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/pdf/Security_Guide/Red_Hat_Enterprise_Linux-7-Security_Guide-en-US.pdf
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For a list of ports used by Prime Access Registrar, see the "Ports" section in the “Overview” Chapter of the Cisco Prime Access Registrar 9.1 Reference Guide. Note that some are defaults and may have been changed during install or configuration.