Unable to connect to PostgreSQL server: FATAL: Peer authentication failed for user "postgres"
How can how to access postgres databases from adminer?
I have changed the password for the user postgres:
$ sudo -u postgres psql
$ postgres=# alter user postgres password 'secret';
Result:
ALTER ROLE
But I still get this error on the adminer:
Unable to connect to PostgreSQL server: FATAL: Peer authentication failed for user "postgres"
Any ideas why?
I have these two users:
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------------------+-----------
postgres | Superuser, Create role, Create DB, Replication, Bypass RLS | {}
root | Superuser, Create role, Create DB | {}
But I did not set password for user root when I created it with this command:
sudo -u postgres createuser --interactive
Output (why doesn't it ask for password??):
Enter name of role to add: root
Shall the new role be a superuser? (y/n) y
But I still get the error on adminer:
Unable to connect to PostgreSQL server: FATAL: Peer authentication failed for user "root"
EDIT:
THis is some bits of my pg_hba.conf
sudo nano /etc/postgresql/9.5/main/pg_hba.conf
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all peer
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local replication postgres peer
#host replication postgres 127.0.0.1/32 md5
#host replication postgres ::1/128 md5
I changed peer to ident:
# Database administrative login by Unix domain socket
local all postgres ident
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all ident
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local replication postgres peer
#host replication postgres 127.0.0.1/32 md5
#host replication postgres ::1/128 md5
Then restarted my machine. but still no luck.