Postgres password authentication fails

Question

I tried to login with the postgres user from my windows machine to my server with Pgadmin.

But it keeps giving me this error:

psql: FATAL:  password          


        

Answer 1

Assuming, that you have root access on the box you can do:

sudo -u postgres psql

If that fails with a database "postgres" does not exists this block.

sudo -u postgres psql template1

Then sudo nano /etc/postgresql/11/main/pg_hba.conf file

local   all         postgres                          ident

For newer versions of PostgreSQL ident actually might be peer.

Inside the psql shell you can give the DB user postgres a password:

ALTER USER postgres PASSWORD 'newPassword';