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From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: rariasamaya@gmail.com
Subject: BUG #17719: scram-sha-256 is not working on PostgreSQL 11.18
Date: Tue, 13 Dec 2022 21:02:56 +0000
Message-ID: <17719-1b134207edf65c08@postgresql.org> (raw)

The following bug has been logged on the website:

Bug reference:      17719
Logged by:          Ramiro Arias-Amaya
Email address:      rariasamaya@gmail.com
PostgreSQL version: 11.18
Operating system:   Debian Linux 11.5
Description:        

I have two machines:
1. HP EliteDesk 800 G1 SFF business computer
    21 GiB RAM,  4.5 TB hard disk
    Processor: Intel i5

2. HP Envy 17-s151nr laptop
    16 GiB RAM,  4 TB hard disk
    Processor: Intel i7

Installing PostgreSQL 11 (11.18 was installed) under Debian 11.5. Once
postgres password has been assigned and after that edit pg_hba.conf using
scram-sha-256,  I got the following result:

ramiro@HP-s151nr:~$ sudo -u postgres psql -p 5432
[sudo] password for ramiro: 
Password for user postgres: 
psql: error: connection to server on socket
"/var/run/postgresql/.s.PGSQL.5432" failed: FATAL:  password authentication
failed for user "postgres"
ramiro@HP-s151nr:~$

Repeating the previous procedure installing from scratch PostgreSQL 14 (14.6
was installed) the command  sudo -u postgres psql -p 5432  executed
flawlessly.

Repeating the procedure, installing PostgreSQL 11 (11.18 was installed),
assigning password to postgres, then edit pga_hba.conf using md5, the
command sudo -u postgres psql -p 5432  executed flawlessly.

In both machines the behaviour was the same. scram-sha-256 is not working on
PostgreSQL 11.18 , despite PostgreSQL claims it works since version 10.
scram-sha-256 DOES work on PostgreSQL version 14.6, which I tested in both
machines.



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