[Dnsmasq-discuss] Two DNSMasqs on a LAN
simon at thekelleys.org.uk
Sun Feb 11 19:48:17 GMT 2007
Richard Bailey wrote:
> Hello, first of all, great program here, it really is (almost)
> everything a small LAN would need.
> I have DNSMasq running on my file server also handling DHCP. My OpenWRT
> router also has DNSMasq running, so I've set two DNS servers in the dhcp
> configuration to send to clients. Is there a way for the second DNSMasq,
> i.e. the one that is not handling DHCP, to be aware of the dhcp leases
> done by the first? This would be handy if the first were down for a
> short time, other clients on the LAN would still be able to resolve each
> other's addresses.
Dnsmasq can be configured to run a command whenever a DHCP lease is
created/expires/changes, so you could probably script something to copy
that data into an /etc/hosts format file on the other machine, and have
the dnsmasq instance there read that.
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