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Using * should be fine unless you have multiple IP addresses and want the *server* to *listen* on only some of those addresses - say localhost if you were running web and db on the same machine and didn't want to listen to connections from the outside. This setting only determines where the server listens.
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Okay, done that - what is the difference between listening on only some of those addresses and allowing only clients in a certain range to connect?
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And since the IP address you gave appears real since it is in the assigned public space for Stephen F. Austin State University, I hope this machine is hiding behind a firewall.
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Yes, behind a firewall and also that machine is a brand new linux box that literally has nothing else on it besides a new install of PostgreSQL
But, yeah, should have anoned up the address...
