Postgres on Debian:
# install
apt-get install postgresql postgresql-client
Setting up postgres (as root)
# become postgres user
su postgres
# spawn postgres admin shell
psql
You'll get a prompt, enter the following:
CREATE ROLE srnd WITH LOGIN PASSWORD 'srndpassword';
CREATE DATABASE srnd WITH ENCODING 'UTF8' OWNER srnd;
\q
Change the username and password as desired.
The username has to be the same as the database name.