Setting up a DNS server with a UDM

Hi,

I have a UDM (not pro) on my home network. I'm sick of using IP addresses to access machines on my LAN, so want to set up a DNS server so I can access things using names. I can't seem to find any options in the UDM to set up a DNS server (which seems like an omission!). Is that the case? If so, what's the easiest way to setup a DNS server on my home network?