DNS
Last updated
Last updated
Resource Record
A Resource record starts with a domain name, usually a fully qualified domain name. If anything other than a fully qualified domain name is used, the name of the zone the record is in will automatically be appended to the end of the name.
TTL (Time To Live)
Time To Live in seconds, defaults to the minimum value determined in the SOA record.
Record Class
Internet, Hesiod, or Chaos.
SOA (Start of Authority)
Indicates the beginning of a zone and it should occur first in a zone file. There can be only one SOA record per zone. Defines certain values for the zone such as a serial number and various expiration timeouts
NS (Name Server)
Defines an authoritative name server for a zone. Defines and delegates authority to a name server for a child zone. NS Records are the GLUE that binds the distributed database together.
A
IPv4 address.
AAAA
IPv6 address.
PTR (Pointer)
The PTR record maps an IP address to a Hostname. Zones with PTR records are called "reverse" zones.
CNAME
The CNAME record maps an alias hostname to an A record hostname.
MX (Mail Exchange)
The MX record specifies a host that will accept email on behalf of a given host. The specified host has an associated priority value. A single host may have multiple MX records. The records for a specific host make up a prioritized list.