Installing Postgres on Ubuntu:

http://www.postgresql.org/download/linux/ubuntu/

• Install postgres
  • create the file /etc/apt/sources.list.d/pgdg.list
  • add one of the following lines to the file based on ubuntu version:
    • 14.04: deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main
    • 15.04: deb http://apt.postgresql.org/pub/repos/apt/ wily-pgdg main
  • import signing key:

    wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | \
      sudo apt-key add -

  • update apt package lists: sudo apt-get update
  • Install: sudo apt-get install postgresql-9.4
• configure postgres
  • become postgres superuser sudo -u postgres i
  • open psql (as postgres superuser): psql
  • create user role:

  CREATE USER username AS SUPERUSER CREATEDB CREATEROLE REPLICATION;

  • exit psql: \q
  • run createdb username to create a postgres database named username
  • exit postgres user: exit
• allow clone access
  • navigate to /etc/postgresql/9.4/main/
  • make backup of conf

  cp pg_hba.conf pg_hba.conf.bak

  • sudo edit /etc/postgresql/9.4/main/pg_hba.conf
  • near the bottom, add your user with method set to trust:

  # Database administrative login by Unix domain socket
  local   all             postgres                                peer
  local   all             username                                trust  #add this line

  • change the rest of the methods to trust

  # "local" is for Unix domain socket connections only
  local   all             all                                     trust
  # IPv4 local connections:
  host    all             all             127.0.0.1/32            trust
  # IPv6 local connections:
  host    all             all             ::1/128                 trust

  • save pg_hba.conf and exit
  • restart
• you should now be able to pg_dump | pg_restore