On Sat, Sep 04, 2021 at 04:33:10PM +0200, Matus UHLAR - fantomas via Dnsmasq-discuss wrote: > On 03.09.21 17:13, Chris Green wrote: > > I know there probably isn't a "right" way to do this but, while I've > > been trying to sort out how to make my dns/dhcp more resilient, I have > > looked at my existing dnsmasq running on a Pi and it looks a bit odd > > to me. > > > > It's a pretty standard, off the shelf Raspberry Pi installation using > > the Lite version as it's headless. The dnsmasq.conf file has been > > changed quite a lot over the years though and I wonder if it's still > > optimal. > > > > The upstream servers *seem* to be specified in /etc/dhcpcd.conf as > > follows:- > > > > # Example static IP configuration: > > interface eth0 > > static ip_address=192.168.1.2/24 > > #static ip6_address=fd51:42f8:caae:d92e::ff/64 > > static routers=192.168.1.1 > > static domain_name_servers=192.168.1.2 1.1.1.1 212.159.13.49 > > this is dhcp client configuration, not dhcp server. > > iiuc it tells dhcp client not to use IP address, default route nor servers > that DHCP server provided. > This *is* the DHCP server for my LAN so these are the upstream DNS servers it gives to its clients.
> I really wonder why you run dhcp client in this case. > > > /etc/resolv.conf is:- > > > > # Generated by resolvconf > > nameserver 127.0.0.1 > > this means local clients query something running on localhost, apparently > dnsmasq. > > > So, is the above OK? Is it the "right" way to do it? ....etc. > > I recomment using nameservers the DHCP server provided, not override it > unless you really know why. > As I said this *is* the DHCP server. The second upstream server is the one I get from my ISP (212.159.13.49 that is). > Also, I would put upstream nameservers to resolv.conf, so the resolving > works even if dnsmasq fails, crashes or is killed. > > > The /etc/resolv.conf is written by /etc/init.d/dnsmasq and is, I > > believe, correct so that dnsmasq does local cacheing. However I'm not > > sure about the upstream servers in /etc/dhcpcd.conf including the > > local host as well. > > I don't see dnsmasq configuration here. > > I assume it's configured but I am not familiar to raspberry configuration... Exactly my problem! It's an 'out of the box' installation of dnsmasq on a Raspberry Pi that I have changed to static IP so that it can act as my local DNS/DHCP server. -- Chris Green _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
