26
Apr
Introduction to FCrDNS
in Geral
Comments
Forward-confirmed reverse DNS (FCrDNS) is an rDNS configuration that defines strong relationship between IP and domain. FCrDNS implementation depends on a joint action between the IP administrator and the domain administrator. When FCrDNS is valid, there is a guarantee that the domain owner has responsibility for the use of IP. How to check FCrDNS for IPv4 To check the FCrDNS, you must query the rDNS. As an...
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