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Re: How to debug authentication issues in Postgres

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When I try to connect to the database, the log says:
> FATAL:  password authentication failed for user "user"
> DETAIL:  Connection matched pg_hba.conf line 88: "host    user       password          0.0.0.0/0               scram-sha-256"

So I think the client is using scram-sha-256

On Fri, Nov 27, 2020 at 8:45 PM Hemil Ruparel <hemilruparel2002@xxxxxxxxx> wrote:
The database has been upgraded

On Fri, Nov 27, 2020 at 8:41 PM Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote:
On 11/27/20 7:01 AM, Hemil Ruparel wrote:
> I don't quite get what you mean by upgrading to scram-sha256. I
> installed postgres 13. I haven't upgraded anything yet.

In postgresql.conf see what password_encryption has been set to. If it
is 'scram-sha-256` then it has been upgraded.



>
> On Fri, Nov 27, 2020 at 8:06 PM Zwettler Markus (OIZ)
> <Markus.Zwettler@xxxxxxxxxx <mailto:Markus.Zwettler@xxxxxxxxxx>> wrote:
>
>     Did you correctly upgrade your whole environment to scram-sha-256?____
>
>     __ __
>
>     __ __
>
>     <quote>
>     To upgrade an existing installation from |md5|to |scram-sha-256|,
>     after having ensured that all client libraries in use are new enough
>     to support SCRAM, set |password_encryption = 'scram-sha-256'|in
>     |postgresql.conf|, make all users set new passwords, and change the
>     authentication method specifications in |pg_hba.conf|to
>     |scram-sha-256|.____
>
>     </quote>____
>
>     __ __
>
>     __ __
>
>     -Markus____
>
>     __ __
>
>     __ __
>
>     __ __
>
>     *Von:*Hemil Ruparel <hemilruparel2002@xxxxxxxxx
>     <mailto:hemilruparel2002@xxxxxxxxx>>
>     *Gesendet:* Freitag, 27. November 2020 09:38
>     *An:* Laurenz Albe <laurenz.albe@xxxxxxxxxxx
>     <mailto:laurenz.albe@xxxxxxxxxxx>>
>     *Cc:* pgsql-generallists.postgresql.org
>     <http://pgsql-generallists.postgresql.org>
>     <pgsql-general@xxxxxxxxxxxxxxxxxxxx
>     <mailto:pgsql-general@xxxxxxxxxxxxxxxxxxxx>>
>     *Betreff:* Re: How to debug authentication issues in Postgres____
>
>     __ __
>
>     The log says:____
>
>      > FATAL:  password authentication failed for user "centos"
>      > DETAIL:  Connection matched pg_hba.conf line 88: "host    user 
>          password 0.0.0.0/0 <http://0.0.0.0/0>             
>     scram-sha-256"____
>
>     __ __
>
>     I can't understand where is the problem as both psql and pgadmin
>     connect without problems using the same password____
>
>     __ __
>
>     On Fri, Nov 27, 2020 at 1:46 PM Hemil Ruparel
>     <hemilruparel2002@xxxxxxxxx <mailto:hemilruparel2002@xxxxxxxxx>>
>     wrote:____
>
>         Sorry. This was the replication section:____
>
>         local   replication     all                                     peer
>         host    replication     all 127.0.0.1/32 <http://127.0.0.1/32
>                   scram-sha-256
>         host    replication     all             ::1/128               
>         scram-sha-256____
>
>         __ __
>
>         On Fri, Nov 27, 2020 at 1:41 PM Laurenz Albe
>         <laurenz.albe@xxxxxxxxxxx <mailto:laurenz.albe@xxxxxxxxxxx>>
>         wrote:____
>
>             On Fri, 2020-11-27 at 13:34 +0530, Hemil Ruparel wrote:
>              > I have restarted postgres quite a few times to try making
>             configuration changes and it
>              >  is always back up. I don't know how. Feels weird to me.
>             I didn't add the line
>              >  "local replication all". It was there by default
>
>             I don't believe that.
>
>             This is how it looks by default:
>
>             # Allow replication connections from localhost, by a user
>             with the
>             # replication privilege.
>             local   replication     all                                 
>                 trust
>             host    replication     all 127.0.0.1/32
>             <http://127.0.0.1/32>            trust
>             host    replication     all             ::1/128             
>                 trust
>
>             Yours,
>             Laurenz Albe
>             --
>             Cybertec | https://www.cybertec-postgresql.com
>             <https://www.cybertec-postgresql.com>____
>


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx

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