Create DB ends with error "FATAL: Ident authentication failed for user "postgres""

Hi all,

PostgreSQL version...: 9.5.5
OS...........................: Oracle Linux 6.5 64 bits

I am quite new in the PostgreSQL world and i'm trying to create a new db
with the following sintax, using the "postgres" OS user:

[postgres(at)vm-ora12 ~]$ createdb -h localhost -p 5432 -U postgres dbdev

*createdb: could not connect to database template1: FATAL: Ident
authentication failed for user "postgres"*

I did the install via YUM, as "root" user using the PostgreSQL repository.
the service is ip and running:

*[root(at)vm-ora12 ~]# service postgresql-9.5 statuspostgresql-9.5 (pid
18507) is running...*

Why am i getting the above error while trying to create a new database?

Thanks for the attention and help.

--
*Fabrício Pedroso Jorge.*

Administrador de Banco de Dados

certificacaobd.com.br <http://certificacaodb.com.br>

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