-== DATABASE CONFIGURATION ==--

      Where is the DWH database located? (Local, Remote) [Local]:
      Setup can configure the local postgresql server automatically for the DWH to run. This may conflict with existing applications.
      Would you like Setup to automatically configure postgresql and create DWH database, or prefer to perform that manually? (Automatic, Manual) [Automatic]:

      Please provide the following credentials for the Engine database.
      They should be found on the Engine server in '/etc/ovirt-engine/engine.conf.d/10-setup-database.conf'.

      Engine database host []: hv01.internal.com
      Engine database port [5432]:
      Engine database secured connection (Yes, No) [No]:
      Engine database name [engine]:
      Engine database user [engine]:
      Engine database password:
**[ ERROR ] Cannot connect to Engine database: Cannot connect to database:
could
not connect to server: Connection refused
              Is the server running on host "hv01.internal.com"
(192.168.1.4) and accepting
              TCP/IP connections on port 5432?**


[root@hv01 engine.conf.d]# **cat /etc/hosts**
127.0.0.1   localhost localhost.localdomain localhost4
localhost4.localdomain4
::1         localhost localhost.localdomain localhost6
localhost6.localdomain6
192.168.1.4 hv01.internal.com

[root@hv01 engine.conf.d]# **nmap** -p 5432 192.168.1.4

Starting Nmap 6.40 ( http://nmap.org ) at 2018-09-23 12:52 CEST
Nmap scan report for hv01.internal.com (192.168.1.4)
Host is up (0.00012s latency).
PORT     STATE  SERVICE
5432/tcp closed postgresql


[root@hv01 engine.conf.d]# **telnet** 192.168.1.4 5432
Trying 192.168.1.4...
telnet: connect to address 192.168.1.4: Connection refused