On Fri, Sep 03, 2021 at 02:32:06PM -0700, Michael wrote: > On 9/3/21 1:23 PM, Chris Green wrote: > > If I have set dhcp-optsdir in /etc/dnsmasq.conf and add a file to the > > directory it points to I assume any extra configuration in the added > > file will 'just happen' without any restart or signalling of dnsmasq. > > > > However (like the description for dhcp-hostsdir I presume that an > > option I have added as above will not be removed if I delete the added > > file. Specifically if I put a dhcp-range option in the added file > > (when there wasn't one in /etc/dnsmasq.conf) the DHCP server in > > dnsmasq will be turned on, but removing the file won't turn the DHCP > > server off again. I'd need to restart dnsmasq to turn the DHCP server > > off (or would one of the signals suffice?). > I believe this is correct. > > > > I'm thinking of running dnsmasq on two systems on my LAN to provide > > some resilience. One will be configured to run DHCP as well as DNS, > > the other will be DNS only. Apart from DHCP the configurations > > will be identical and the IPs of both systems will be given by the > > DHCP server as DNS IPs. > > > This works if your DHCP server only hands out static addressing so the host > names are all listed in the /etc/hosts or addn hosts location on both > machines. If the DHCP server is handing out addresses from a pool, then > only the DHCP dnsmasq instance will know about those hosts by name. > I was aiming to synchronise the lease file in /var between the two systems as well as the configuration.
-- Chris Green _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
