-
locate data folder and
pg_hba.conf
inside, for exampleC:\Program Files\PostgreSQL\12\data\pg_hba.conf
; -
open the file, you'll see:
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5