AAAA record
An AAAA record maps a DNS name to an IPv6 address. Suitable network and server configuration is needed to make the service reachable through it.
What is an AAAA record?
An AAAA record is a DNS resource record for an IPv6 address. RFC3596 defines one such address per record. A name can have several AAAA records alongside A records for IPv4. The DNS query and the subsequent connection are separate operations.
Example: publishing the portal's IPv6 address
In a fictional design, the customer portal's name receives an additional AAAA record. Clients can then find an IPv6 destination address. The team must also ensure that the network, firewall and web service allow a connection through that address.
A reachable IPv4 service does not prove that an IPv6 connection works. When publishing an AAAA record, the team should check actual portal access through it, including the certificate and required application functions.
The record does not establish encryption or set user permissions. An incorrect address should be corrected at its source; previously cached DNS answers may continue to be used during their remaining cache lifetime.
Sources
Related terms
- A recordAn A record maps a DNS name to an IPv4 address. It does not configure the website or define HTTPS, paths or an HTTP redirect.
- IPv6IPv6 uses 128-bit addresses. A portal offered over it needs matching DNS, network, server and access-rule configuration.
- Domain Name SystemDNS supplies data about names, such as a web server’s address. Name resolution, the server connection and application behaviour are separate steps.
- Return-PathReturn-Path records the SMTP reverse path in a header. It explains the technical route for error reports, not a person’s identity.
- Envelope-FromEnvelope-From identifies the SMTP sender for transport and error feedback. It must be distinguished from the visible sender address.
- DMARC aggregate reportA DMARC aggregate report summarises a reporting mail system’s domain checks over a period. It helps examine sending sources and misconfigurations.
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