following guide here http://documentation.cyclos.org/4.6/cyclos-reference/ch01.html


root@webserver-virtual-machine:/etc/init.d# sudo -u postgres psql
psql: could not connect to server: No such file or directory
        Is the server running locally and accepting
        connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
root@webserver-virtual-machine:/etc/init.d#