[CalendarServer-users] Not able to install PostGres on EC2 instance

* I have a 64-bit Ubuntu-14.x instance. * I use CalendarServer-5.2.2. Once I checkout and I run: ./run -s But I keep getting: PostgreSQL is not available from calendarserver.org; trying upstream source. % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed * 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: ftp5.us.postgresql.org <http://ftp5.us.postgresql.org>* I dont get the same issue on Mac OS (development laptop) Please provide assistance. Regards,