DNSMasq - dnslookup build.domain.local works but ping build.domain.local doesnt

mustaghattack · 03-01-2010, 04:51 PM

Hi,

I've got DNSMasq running on machine 192.168.1.1, configured as follow :

Code:

domain=mydomain.local
dhcp-option=lan,3,192.168.1.1
dhcp-authoritative
dhcp-range=lan,192.168.1.100,192.168.1.179,255.255.255.0,0m
dhcp-host=00:19:21:ea:a5:16,build,192.168.1.150,infinite
expand-hosts

Notice the static lease for the build machine.

On my machine (XUbuntu 9.10, IP:192.168.1.134) I have /etc/resolv.conf set by DHCP :

Code:

# Generated by NetworkManager
domain mydomain.local
search mydomain.local
nameserver 192.168.1.1

Still on my machine I execute the following commands :

Code:

$ ping build
PING build.mydomain.local (192.168.1.150) 56(84) bytes of data.
64 bytes from build.mydomain.local (192.168.1.150): icmp_seq=1 ttl=64 time=8.43 ms

Code:

$ nslookup build.mydomain.local
Server:		192.168.1.1
Address:	192.168.1.1#53

Name:	build.mydomain.local
Address: 192.168.1.150

Code:

$ ping build.mydomain.local
ping: unknown host build.mydomain.com

Why does the last ping fails ??

Thanks, Bruno

mustaghattack · 03-01-2010, 06:39 PM

On windows machines, if I ping build.mydomain.local it works ...

mustaghattack · 03-01-2010, 09:00 PM

I've figured out what the problem was ...

Ubuntu comes with avahi. Avahi is a mDNS server. When trying to resolv hosts ending with .local it uses mDNS instead of DNS. mDNS fails.

If I stop avahi, everything works fine ...