[Multiple Servers] Tunneling methods such as 6to4, GRE6, and IP6IP6, Geneve provide solutions for transmitting IPv6 packets over existing IPv4 or IPv6 networks. These methods allow communication between networks that use different IP versions.

Create private ip for your servers and establish different tunnels

Exclude conf which excludes private, reserved, bogons, root dns & government ranges from masscan scanning.

This is a node application demo using the express js server Mongodb database. we can insert data to the MongoDB database and fetch data and show on the frontend page, also it shows the hostname, private IP, and public IP.