Guides tagged “reverse dns”

Step-by-step MdmHost guides about reverse dns, sorted A-Z.

5 guides

  • Check and fix reverse DNS (PTR) so your email is not rejected

    Find your mail server's sending IP, check its PTR record, make forward and reverse DNS match, and fix the bounces caused by missing rDNS.

    IntermediateVPS and dedicated mail servers2 min read
  • Set reverse DNS (rDNS/PTR) for your VPS IP in Virtualizor

    Set a PTR record for your VPS IPv4 and IPv6 addresses in Virtualizor, match it with forward DNS and the hostname, and improve email deliverability from your VPS.

    IntermediateVirtualizor VPS2 min read
  • Set your server hostname and reverse DNS

    Change the server's hostname, point DNS records at your IP, set reverse DNS in the control panel and check that forward and reverse lookups match.

    IntermediateLinux server2 min read
  • What is a server hostname?

    A hostname is the name a server uses for itself. Learn how it differs from a domain name and an IP address, how to choose a good one, and how it relates to DNS and reverse DNS.

    Beginner4 min read
  • What is reverse DNS (rDNS) and why it matters

    Reverse DNS maps an IP address back to a hostname using a PTR record. Learn how it differs from normal DNS, why mail servers check it, and how to look it up from your own computer.

    Beginner4 min read

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