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1. To allow localhost connections to all databases from any user without password authentication, edit your pg_hba.conf file to include these entries.
   
   1. local all all trust  (unix installs only) 
   2. host all 127.0.0.1/32 trust
   3. host all all ::1/128 trust (windows only - ipv6 section) 
2. Comment IDENT-based authentication
   
   1. Otherwise, the following error message will be popped up: "psql: FATAL:  Ident authentication failed for user "[userid]" "

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