The WHOIS domain database is a listing of all registered domains, and is regularly used for various legal purposes.Network administrators use the WHOIS lookup to identify and fix problems. For instance, WHOIS information can be used to check domain name availability, identify trademark infringement, and keep domain name registrants accountable. WHOIS verification can even be utilized to combat How to use Nslookup to check DNS Records To check what DNS is set on a Windows system use this command: ipconfig /all. Now take the IP listed for the DNS server and see if the client can ping it or communicate with it. Step #2 Are other users or devices having name resolution issues? You need to determine how big of a problem you have. Is it just one, two or many devices that have DHCP dynamic updates of DNS registrations are delayed or Jun 08, 2015 How to Check a Name Server Registration and Address To check the status for any name server registered on a domain that is in your account: Under the Domains menu, click Advanced Tools, and then click Register a Name Server. Scroll down to Check Status of a NameServer Name and type your name server name. (e.g., ns1.yourdomain.com).
The Office 365 DNS Diagnostic and DNS configuration
Whois Lookup Tool - Check Domain registration info - MxToolbox
Sep 14, 2018
The Office 365 DNS Diagnostic and DNS configuration Jan 10, 2020 DNS Registration with the Network Name Resource