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A suggested work-around for this problem is to use the bind (9.6 & later) command rrset-order.

rrset-order { type SRV order random; };

Documentation for rrset-order here: http://www.zytrax.com/books/dns/ch7/queries.html

Wiki Markup

rrset-order rrset-order { order_spec ; [ order_spec ; ... ] rrset-order defines the order in which multiple records of the same type are returned. This works for any record type in which the records are similar not just A or AAAA RRs and covers results in the ANSWER SECTION and the ADDITIONAL SECTION. The default is cyclic (round-robin). The full specification of rrset-order is shown below. An 'order_spec' is defined as: class class_name ][ type type_name ][ name "domain_name"] order ordering; Where 'class_name' is the record class, for example, IN (default is 'any'), type is the Resource Record type (if none specified defaults to 'any'), domain_name limits the statement to a specific domain suffix and defaults to root (all domains), order is a key word and ordering may take one of the following values: fixed - records are returned in the order they are defined in the zone file random - records are returned in a random order cyclic - records are returned in a round-robin fashion Note: For reasons best known to the ISC (BIND's author) the fixed value is now (BIND 9.6+) only available if the configure option --with-fixed-rrset is used in the build. Neither BSD nor Debian standard packages use this option. This is likely to be true for Fedora and other RPMs but has not been verified (use named -V to check). For practical purposes only cyclic and random are the available choices. Examples Defines that all equal records for all domains will be returned in random order. rrset-order {order random;}; Defines that all equal MX records for example.com will be returned in random order all others in cyclic order. rrset-order {type MX name "example.com" order random; order cyclic}; This statement may be used in a view or a global options clause.

Advanced DNS configuration

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