[Dnsmasq-discuss] dynamic dns server ?

[Colin Kincaid Williams]

I've been asked to provide a dns solution for a lab environment.  In
the lab they are spinning up VM's with virtual network interfaces, the
problem is the machines need to be able to communicate with each
other. The lab has a certain network infrastructure that I cannot
change e.g. DHCP server.

So for the VM hosts foo1.local, I would like it to resolv foo2.local,
foo3.local. More vms can be spun up all the time, and I cannot assume
i know their hostname.

These hosts all receive their ips from another DHCP server, lets call
it dhcp.local. It might be nice if I could use dnsmasq to provide them
with an IP address, because I believe that it can also add that IP
dynamically to it's hostname / DNS table.However, I have to use
dhcp.local that is not using DHCP. I saw an option to use dnsmasq as a
DHCP relay. If I chose this option, will -dhcp-relay=<local
address>,<server address>[,<interface], will I be able to get an
adress from dhcp.local, and still have the fqdn and ip added to the
DNS table on the dnsmasq server, call it dnsmasq.local.


If this won't work another thing I was thinking I could do is use the
dynamic-dnsmasq.pl script to add the host to dnsmasq.local, on the
creation of the vm.

I think I prefer using the DHCP relay, if that would work. I'm just
looking for some advice. Some other possibilities include the use of
mDNS or zeroconf...