«Service"Is the name of the service for which the record is being created.
«Subdomain "- subdomain for which the record is being created. (The symbol is used to indicate the primary domain @.)
«Protocol"- the transport layer protocol to be used by the service.
«A priority"- priority of using the record. For two identical entries, the entry with the lower priority value will be used first. The other entry will only be used if the first is unavailable.
«Weight"- the value of the prioritization of sending requests. For multiple records with the same priority, requests will be distributed proportionally between records according to weight. The principle of operation of this value is such that for two records you can specify a different weight to distribute the load, in which case more requests will come to one server than to the second.
«Port "- port used for the service.
«Server address"- the address of the server to which connections will be made.