Postgres configuration after installing from the relinux image

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sudo useradd postgres
sudo chown -R postgres:postgres /usr/lib/postgresql/
sudo chown -R postgres:postgres /var/lib/postgresql/
sudo chown -R postgres:postgres /var/log/postgresql/
sudo chown -R postgres:postgres /etc/postgresql/
sudo cd /var/lib/postgresql/9.1/main/
sudo mv server.key server.key-0
sudo cp /etc/ssl/private/ssl-cert-snakeoil.key server.key
sudo chown postgres server.key
sudo chgrp postgres server.key
sudo chmod 740 server.key