CODEWITHSUNDEEP
postgresql
Nguyen Cuc
Nguyen Cuc

Reputation: 97

pgAdmin4 can not connect to postgres server though the password is correct?

I am newbie with pgAdmin4 and here is my problem.

I setup postgresql in ubuntu, everything seems ok, I change password for the account postgres by this command sudo passwd postgres and note it very carefully.

Then, I tried to connect to postgresql by pgAdmin4 follow this tutorial.

https://www.youtube.com/watch?v=XRdl0P4V-PU

Name is localhost Hostname is localhost Port is 5432 Maintenance database is postgres Username is postgres And password is the password I set above.

But they said to me that Unable to connect to server: FATAL: password authentication failed for user "postgres"

I tried to change the password, but still the same error. Seems something wrong ? Could you please give me some ideas ? Thank you very much.

Upvotes: 0

Views: 1491

Answers (1)

richyen
richyen

Reputation: 10048

It seems like you only changed the password at the OS level. Basically, for the Ubuntu user postgres, you changed the password with sudo passwd postgres.

In order to change the password for the postgres user for the database, you need to log into the database and change the postgres user's password with ALTER ROLE postgres PASSWORD '<your password>';

In order to accomplish this, you will need to change your pg_hba.conf temporarily, allowing the postgres user to log in without a password (either set to trust or peer authentication method, change the password, and the switch back to password or other authentication method). After changing pg_hba.conf you will either want to issue a kill HUP to the parent postgres process (check the top-most process in your ps -ef | grep postgres output), or simply restart postgres with systemctl restart postgresql<your_postgres_version>

Upvotes: 2

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