How to Install and configure DNS on Ubuntu 20.04.

A DNS server is a system server that check a database of Ip address and clients.  It provides to resolve those names to public ip address as requested. DNS servers run software and communicate with each other using protocols. Domain Name Service (DNS) is an Internet service that contains IP addresses and fully qualified domain …

How to Create DNS Firewall Rule Group on Amazon Web Service(AWS).

A DNS Firewall firewall is a network security solution that prevents network users and systems from connecting to known malicious Internet locations.DNS Firewall works by employing DNS Response Policy Zones (RPZs) and actionable threat intelligence to prevent data exfiltration.   Login to aws portal. Click on Services.     Under Networking & Content Delivery select …