Just use 5432, and as/if you are using the loopback address 127.0.0.1, you don't need to care about opening up ports.BTW, port 5433 is only used starting ClearPass 6.11 to separate the configuration and log databases:
Ensure port 5433 is open in order to access the Insight database. Port 5433 is also used for connecting to the tipsLogDb in ClearPass 6.11.0. For Insight queries you may need to change the port to 5433, but endpoint db/Guest you should be good with port 5432.
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