PostgreSQL Notes

1. Download
2. Documentation 9.4

sudo -u postgres psql postgres
\password postgres
enter password
\q

/etc/postgresql/9.4/main/pg_hba.conf:
local   all             all             trust
host    all             all             0.0.0.0/0               md5

/etc/postgresql/9.4/main/postgresql.conf:

listen_addresses = '*'

sudo service postgresql restart

psql
create extension "adminpack";