The Address (A) record associates a domain name or subdomain with an IP address, which is the primary purpose of the DNS system. The @ sign identifies "this domain;" for example, A @ nnn.nnn.nnn.nnn ...

You would have probably come across DNS management while surfing the internet in search of a web hosting platform. DNS is like an address book of the internet. The DNS management system is a system ...

By tapping into DNS intelligence, organizations can gain full-spectrum visibility into connected assets, reduce hidden attack ...

DNS can be tricky. There is a lot to know and, even when you think you have a firm grasp on it, surprises still pop up. Reverse DNS and PTR record configuration is one of those sneaky topics, but it’s ...

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Cloudflare is great… until it isn’t.

Businesses can create a sender policy framework (SPF) record on a domain to detect email spoofing and block spam. The SPF record defines authorized mail servers in the domain name system; if the ...

By looking at the MX records you retrieve from your DNS servers and comparing that to the MX records returned from other DNS servers, you can determine if your servers are delivering mail to the same ...

The DNS CNAME is one of the most versatile tools in an IT administrator’s arsenal. One caveat to reaching the full potential of a CNAME is default TTL. IT pro Rick Vanover explains situations to lower ...