Unable to run php artisan migrate on Ubuntu 14.04.4 x64.

Unable to run php artisan migrate on Ubuntu 14.04.4 x64. Am getting a [PDOException] SQLSTATE[08006] [7] FATAL: password authentication failed for user "postgres" FATAL: password authentication failed for user "postgres"

For testing purpose: I did the following: a. sudo su - postgres b. execute command psql c. ALTER USER postgres PASSWORD 'postgres' d. in the database.php file - made the following changes 'default' => env('DB_CONNECTION', 'pgsql'), 'pgsql' => [ 'driver' => 'pgsql', 'host' => env('DB_HOST', 'localhost'), 'port' => env('DB_PORT', ''), <-- I have a valid port on which postgres sql is listening 'database' => env('DB_DATABASE', '****'), <-- I have a valid database name here 'username' => env('DB_USERNAME', 'postgres'), 'password' => env('DB_PASSWORD', 'postgres'), 'charset' => 'utf8', 'prefix' => '', 'schema' => 'public', ],

Now when I run the below command: php artisan migrate

• Application In Production!     *
  

Do you really wish to run this command? [y/N] (yes/no) [no]:

y [PDOException] SQLSTATE[08006] [7] FATAL: password authentication failed for user "postgres" FATAL: password authentication failed for user "postgres"

I recently created this droplet in DO, installed PHP, NGINX, POSTGRES SQL. I Know I probably should have used Forge.. But, would like to learn a little bit before i give up.. q: when I run the php artisan command - i thought it would get the database configuration from database.php file. Is this correct? q: Also when is the .env file read - only when the application is accessed through the web? q: Are there any php.ini or other configuration file changes I have to make? Any help or direction is greatly appreciated. Thanks