I have a problem when I am trying to connect the database that I have in pgadmin with my QGIS project. I am trying to create a New PostGIS connection like in the following picture:

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But I am always getting the following when I am trying to connect with my credentials to the database.

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Do you know what should I do in order to solve it? I have checked that solution but it doesn't work for me (Authentication using PG 10 scram-sha-256 password encryption)

PS: I am using QGIS3.6 and pgAdmin 4 v6.

  • Click the Store button? for username/password
    – Mapperz
    Feb 9, 2022 at 14:45
  • @Mapperz I have done it already but this doesn't change the error!
    – Anas.S
    Feb 9, 2022 at 14:46

1 Answer 1


this worked for me: QGIS failure in PostGIS connection: "ident authentication failed for user"

The local connection (to worked if I use trust in /etc/postgresql/11/main/pg_hba.conf:

host all all trust host all all ::1/128 trust

  • "Trust" actually means anyone can connect without password
    – Boodoo
    Jul 13 at 14:27

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