SoftLayer_Dns_Domain_ResourceRecord_SoaType defines a domains' Start of Authority (or SOA) resource record. A domain’s SOA record contains a domain’s general and propagation information. Every domain must have one SOA record, and it is not possible to remove a domain’s SOA record.

SOA records typically contain a domain’s serial number, but the SoftLayer API associates a domain’s serial number directly with it’s SoftLayer_Dns_Domain record.




An identifier belonging to the domain that a resource record is associated with.
Type: integer


The amount of time in seconds that a secondary name server (or servers) will hold a zone before it is no longer considered authoritative.
Type: integer


A domain resource record’s internal identifier.
Type: integer


The amount of time in seconds that a domain’s resource records are valid. This is also known as a minimum TTL, and can be overridden by an individual resource record’s TTL.
Type: integer


Useful in cases where a domain has more than one mail exchanger, the priority property is the priority of the MTA that delivers mail for a domain. A lower number denotes a higher priority, and mail will attempt to deliver through that MTA before moving to lower priority mail servers. Priority is defaulted to 10 upon resource record creation.
Type: integer


The amount of time in seconds that a secondary name server should wait to check for a new copy of a DNS zone from the domain’s primary name server. If a zone file has changed then the secondary DNS server will update it’s copy of the zone to match the primary DNS server’s zone.
Type: integer


The email address of the person responsible for a domain, with the “@” replaced with a “.”. For instance, if is responsible for, then’s SOA responsibility is “”.
Type: string


The amount of time in seconds that a domain’s primary name server (or servers) should wait if an attempt to refresh by a secondary name server failed before attempting to refresh a domain’s zone with that secondary name server again.
Type: integer


The Time To Live value of a resource record, measured in seconds. TTL is used by a name server to determine how long to cache a resource record. An SOA record’s TTL value defines the domain’s overall TTL.
Type: integer


The string “soa” which defines a resource record as an SOA record.
Type: string



The domain that a resource record belongs to.
Type: SoftLayer_Dns_Domain


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