How do I access my jail by hostname on a home network?

I'm using FreeNAS (FreeBSD), and I've created a jail, and I've given the jail a hostname, and I can access the jail via IP address, but I can't access the jail by it's hostname. (within my home network) I think I somehow need to get local DNS working? But on a home network, I don't have a proper DNS? I am not sure how name resolution works on home networks. i.e. I can make http://192.168.1.42:8000 and the jail responds to those requests. on the jail:

root@jailname:/ # hostname
jailname

but on other computers on the network:

mckay@mckays-macbook ~ % ping jailname
ping: cannot resolve jailname: Unknown host

C:/> ping jailname
Ping request could not find host jailname. Please check the name and try again

FWIW, I can resolve my NAS and my mac by hostname on a windows machine, but a mac can't get the hostname of the NAS or the windows machine. (but it can ping them by IP). Android devices can get name resolution on the NAS.