DNS: Root name servers
Root Nameservers
The TCP/IP Guide - DNS Root Name Servers
What are the root DNS servers, and where are they located? - Quora
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Why There Are Only 13 DNS Root Name Servers
DNS server types | Cloudflare
How to find a website's DNS (name server) address - nixCraft
DNS server types | Cloudflare
Difference Between Recursive DNS & Authoritative DNS - Cisco Umbrella
Why Hackers Can't take down DNS root servers ?
What is DNS and which Server do I choose? « Super User Blog
Root DNS Servers in the World | Ashoo's Ubuntu Blog!
An introduction to the Domain Name System
DNS Basics (System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP))
The Root Name Servers
DNS Servers: Authoritative vs. Recursive vs. Root vs. TLD | Keeping you connected with everything from Dynu
Tech Blog: Domain Naming System (DNS)
How to Configure Recursive DNS Lookup on NetScaler
What are the root DNS servers, and where are they located? - Quora
Reviewing DNS Concepts | Microsoft Docs
DNS / nslookup - How to find the root servers ? - Fir3net
What is DNS, How it Works + Vulnerabilities
