first draft

common/docs/knowledgeBase/MultiInstance-Configuration.txt

+
+
+[Enable Private ip]
+https://www.digitalocean.com/docs/networking/vpc/how-to/enable/
+
+[docker port binding]
+In order to get from one service to another on other instance on the same VPC, we need to add the port
+to the firewall but in the 'Sources' section add the VPC name and delete other tags like 'All IPV4','All IPv6'.