The following sample configuration uses CNAME values.

group cname_group (
    SystemList = { sysA = 0, sysB = 1 }
    )

    DNS cname_group_dns_res (
        Domain = "example.com"
        StealthMasters = { "3ffe:556::1000:5761" }
        ResRecord @sysA = { www = server1 }
        ResRecord @sysB = { www = server2 }
        OffDelRR = 1
				)