I have a Linksys router running DD-WRT (Firmware: DD-WRT v24-sp2 (09/08/09) mini). I have it successfully resolving the DNS names for my DHCP-assigned systems, but only when I fully-qualify those domains. This is despite using the "expand-hosts" DNSMasq additional option, which is supposed to activate this precise function.
Here's my dnsmasq.conf:
interface=br0 resolv-file=/tmp/resolv.dnsmasq domain=example.com dhcp-leasefile=/tmp/dnsmasq.leases dhcp-lease-max=51 dhcp-option=lan,3,10.77.0.5 dhcp-authoritative dhcp-range=lan,10.77.0.100,10.77.0.149,255.255.0.0,1440m dhcp-host=00:1A:A0:1D:82:5A,astatichostname,10.77.1.40,infinite expand-hosts
(FYI: example.com and astatichostname are placeholders for the real-deal names I use. My network uses 10.77.0.0/16; my router is on 10.77.0.5.)
> nslookup astatichostname 10.77.0.5 Server: 10.77.0.5 Address: 10.77.0.5#53 ** server can't find astatichostname: NXDOMAIN > nslookup astatichostname.example.com 10.77.0.5 Server: 10.77.0.5 Address: 10.77.0.5#53 Name: astatichostname.example.com Address: 10.77.1.40
Is there something else that could be tripping up expand-host in DNSMasq?