PTR-Record (EN)

Concept

DNS record type for reverse lookup of IP addresses to domain names

Architecture

A PTR-Record enables the reversal of normal DNS resolution:

flowchart LR   A[IP address] --> B[Reverse DNS query]   B --> C[Reverse zone]   C --> D[PTR record]   D --> E[Domain name]

In Context

  • Typically used together with A-records
  • Related to: DNS, Reverse-Lookup, A-Record, MX-Record
  • Example use: Email server security for sender verification
Quelle: AI Generated