[Dnsmasq-discuss] Why doesn't this machine name get propagated round my LAN?
simon at thekelleys.org.uk
Tue May 8 09:44:57 BST 2012
On 08/05/12 09:40, Chris Green wrote:
> I have dnsmasq version 2.52 running on an Ubuntu server machine on our
> home LAN.
> At the bottom of /etc/dnsmasq.conf I have the following:-
> The machines backup is a Western Digital NAS that runs Linux, chris is
> my desktop machine running xubuntu and ben is my son's games machine
> running Windows Vista.
> I can refer to 'backup' and 'chris' by name OK:-
> chris at dps:/etc$ host backup
> backup.zbmc.eu has address 192.168.1.88
> chris at dps:/etc$ host chris
> chris.zbmc.eu has address 192.168.1.4
> chris at dps:/etc$
> but not 'ben':-
> chris at dps:/etc$ host ben.zbmc.eu
> Host ben.zbmc.eu not found: 3(NXDOMAIN)
> What am I doing wrong? The MAC address is right:-
> root at chris:~# arp-scan -l
> Interface: eth0, datalink type: EN10MB (Ethernet)
> Starting arp-scan 1.8.1 with 256 hosts (http://www.nta-monitor.com/tools/arp-scan/)
> 192.168.1.1 00:50:7f:8b:35:40 DrayTek Corp.
> 192.168.1.2 00:01:6c:6c:c7:9b FOXCONN
> 192.168.1.6 00:04:4b:07:13:30 NVIDIA
> 192.168.1.88 00:90:a9:70:06:ff WESTERN DIGITAL
> 192.168.1.137 00:04:20:26:55:19 Slim Devices, Inc.
> 192.168.1.145 08:00:27:24:d0:9c CADMUS COMPUTER SYSTEMS
> 192.168.1.129 00:01:e3:9d:8b:b5 Siemens AG
> The NVIDIA machine is 'ben'.
> Is it because 'ben' has a static IP and thus dnsmasq isn't setting its
Probably. dhcp-host provides information which dnsmasq uses when it
gives out a DHCP lease. If the host doesn't have a DHCP lease, the name
won't go into the DNS.
If so how do I get dnsmasq to provide DNS lookup for 'ben'?
Put 'ben' in /etc/hosts. Dnsmasq reads names/addresses from there too,
independently of the DHCP subsystem.
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