-W, --srv-host=<_service>.<_prot>[.<domain>],[<target>[,<port>[,<priority>[,<weight>]]]]

Return a SRV DNS record. See RFC2782 for details. If not supplied, the domain defaults to that given by --domain. The default for the target domain is empty, and the default for port is one and the defaults for weight and priority are zero. Be careful if transposing data from BIND zone files: the port, weight and priority numbers are in a different order. More than one SRV record for a given service/domain is allowed, all that match are returned.