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Subject: Re: postgresql definitive list of network resources used/needed?
From: Scott Ribe <scott_ribe@elevated-dev.com>
In-Reply-To: 
 <CAGA3vBtLg=NLHQNjmVGAStWE2v5iwKw2nP+n=-6s_4USQuMEPA@mail.gmail.com>
Date: Thu, 11 Aug 2022 09:04:35 -0600
Cc: Tom Lane <tgl@sss.pgh.pa.us>,
 "David G. Johnston" <david.g.johnston@gmail.com>,
 pgsql-admin <pgsql-admin@postgresql.org>
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> On Aug 11, 2022, at 8:38 AM, richard coleman =
<rcoleman.ascentgl@gmail.com> wrote:
>=20
> If you read the entire line you quoted, I was trying to confirm that =
intrinsic features and utilities, including pg_dump, don't use any =
**other** network ports

Right. "Standard" utilities don't. pg_dump, pg_basebackup, fdw, etc all =
connect to PG as clients--which means they connect to 5432, from =
whatever random port the OS assigns to that connection.