systemctl enable httpd
service httpd restart
-SELinux notes: httpd is allowed to connect to the default OpenNebula RPC port 2633. Different remote port would need to be permitted in SELinux (it works adding the port to 'http_port_t', or enabling 'httpd_can_network_connect' boolean).
+SELinux notes: httpd is allowed to connect to the default OpenNebula RPC port 2633. Different remote port would need to be permitted in SELinux (it works adding the port to 'http_port_t', or enabling 'httpd_can_network_connect' boolean). For example (replace $PORT by the RPC port number):
+
+ semanage port -a -t http_port_t -p tcp $PORT
Quick test