this tool allows to have delegated dns domain to opennebula with dns names for every vm.
vm dns names with vmid look like 3456.vms.my.domain.int
. additionaly, there are dns names based on vm name with truncated suffix with vmid. this has sideefect for vms with the same base name - it allow having round robin ballancing.
currently we use /etc/hosts.dnsmasq
to not interferre with system /etc/hosts. using hosts file has some drawbacks, like nonexistent wildcards.