After migrating a project to laravel from apache to nginx database (pgsql) gives an error SQLSTATE[08006] [7] could not connect to server, how can I solve this?

Question

PostgreSQL

After migrating a project to laravel from apache to nginx, the database gives an error:
PDOException in Connector.php line 55:
SQLSTATE[08006] [7] could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
how can this be solved?
DB: postgresql
OS: ubuntu 14.04

Answer 1

What does apache/nginx have to do with it?
It cannot connect to the database. You need to see if postgre is running at all.

Answer 2

As far as I remember, during the initial setup of PGSql, you need to edit the interfaces and IP addresses from which it listens in the config