java - Is it possible to detect visitor DNS server? - Stack Overflow
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What is my DNS? 5 ways to find out, in Windows 10 | Digital Citizen
What is my DNS? 5 ways to find out, in Windows 10 | Digital Citizen
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How To Know Your IP Address, DNS Server's Address Using Command Prompt - YouTube
HowTo: Find Out DNS Server IP Address Used By My Router? - nixCraft
How to find your DNS server address – ei3 Knowledge Database
How to Find My DNS Server IP ADDRESS in Linux - OSETC TECH
