adding sys_dns::default for dependency management
adding sys_dns::default for dependency management

SchoolSpring/cookbooks_internal,rs-services/cookbooks_internal,rs-services/cookbooks_internal,SchoolSpring/cookbooks_internal,SchoolSpring/cookbooks_internal,SchoolSpring/cookbooks_internal,rs-services/cookbooks_internal,rs-services/cookbooks_internal,SchoolSpring/cookbooks_internal