Re: Fwd: Identify system databases - Mailing list pgsql-general

From David G. Johnston
Subject Re: Fwd: Identify system databases
Date
Msg-id CAKFQuwZA7YRtHTdkLCVrVCQr2bns_p2C2rC558DyGYC49OQy+g@mail.gmail.com
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In response to Re: Fwd: Identify system databases  (Dominique Devienne <ddevienne@gmail.com>)
Responses Re: Fwd: Identify system databases
List pgsql-general
On Wed, Apr 16, 2025 at 8:07 AM Dominique Devienne <ddevienne@gmail.com> wrote:
On Wed, Apr 16, 2025 at 4:39 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Laurenz Albe <laurenz.albe@cybertec.at> writes:
> > On Wed, 2025-04-16 at 10:09 +0200, Dominique Devienne wrote:

So in a way, you guys are saying one should never REVOKE CONNECT ON
DATABASE FROM PUBLIC?

All my DBs are not PUBLIC-accessible.
And inside my DBs, I try to revoke everything from PUBLIC
(USAGE ON TYPES, EXECUTE ON ROUTINES).
Nor do I use the public schema.
And I never use the "built-in" postgres database.
Basically I want all GRANTs to be explicit.

Given the above, I'd want to not provide access to the postgres DB too.
 
Yet have a way to discover which DBs I can connect to, from the "cluster only".

Kinda surprised you don't consider this a feature...give all of your databases UUID names and ensure that non-superusers must be told the databases they are allowed to connect to.

But feel free to work out a design and add it to the ToDo list for the v4 protocol.  The use case seems reasonable and doable (on the basis of the replication protocol works).


David J.

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