#21571: dnsmasq split-horizon config with auth server
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Reporter: erm67@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Trunk
Keywords: dnsmasq auth |
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I use openwrt chaos calmer on my small home router (and find it great
btw), and I use dnsmasq-full as an authoritative DNS for a
freedns.afraid.org subdomain I host on my home server. I'd like to
configure the dns in a way that the domain resolves to address x.x.x.x
when queried over the external interface and to 192.168.1.y when queried
over the internal one, this because if I access the home server from
inside the lan using the external address x.x.x.x all traffic goes through
the nat layer of the small router and will slow down a lot. The home
server is running owncloud over a Gbit network so especially when
up/downloading large files it is important to access it using the internal
address 192.168.1.y.
dnsmasq has basic split-horizon capabilities defining an auth server on
the external interface and using localise-queries to serve a different
address for the internal interface:
auth-server=owncloud.local.lan,wan
host-record=owncloud.local.lan,x.x.x.x
auth-zone=owncloud.local.lanm,x.x.x.x/32
localise-queries
address=/owncloud.local.lan/192.168.1.y
Unfortunately this doesn't currently work, I reported it upstrean ad it
was recognized as a defect and fixed by commit
3a3965ac21b1b759eab8799b6edb09195b671306, it will be relesed in dnsmasq
2.76.
The patch however, is very simple and works also on dnsmasq 2.73 shipped
with chaos calmer. Since this might be useful to others it's maybe worth
including the patch without waiting for 2.76 to hit openwrt.
--
Ticket URL: <https://dev.openwrt.org/ticket/21571>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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