DNS

What is DNS? DNS is Domain Name Server, when you go to google.com, computers don’t know what google.com is but it does know what an IP address is. So you have a file on you computer that says google.com equals 127.0.0.1. If you want to see the IP of google.com ping google.com on any system. How does DNS work? So when you go to a site like rebootcyber.xyz. First your pc check its DNS cache file then go to a local name server like your router or pi-hole. Then to a .com name server. Final to rebootcyber.xyz nameserver. If there are subdomains you want to go to then it will be the job of rebootcyber.xyz nameserver. ...

What is OpenDNS? OpenDNS is a DNS sinkhole. This allows you to stop people from going to certain sites that you don’t want them to go to. There is two version of OpenDNS called Umbrella this is the enterprise version and cost money. We will be using the consumer version called OpenDNS home. First you need to set up an account. You will need an email address, password, and public IP. Ones you login in. You are ready to start ...

PiHole Pi-Hole is a Linux network-level advertisement and Internet tracker blocking application which acts as a DNS sinkhole and optionally a DHCP server, intended for use on a private network. This allows you to block unwanted stuff and websites on your private network.DNS Sinkhole is a mechanism aimed at protecting users by intercepting DNS request attempting to connect to known malicious or unwanted domains and returning a false, or rather controlled IP address. The controlled IP address points to a sinkhole server defined by the DNS sinkhole administrator. ...