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> Date: Fri, 3 Oct 2008 17:09:39 +0000<br>> From: richardvoigt<br>> Subject: Re: [Dnsmasq-discuss] Override DNS servers in DHCP packet<br><br>> On Wed, Sep 24, 2008 at 12:51 AM, A C <agcme> wrote:<br><br>> >> On Tue, 23 Sep 2008 15:45:24 -0400<br>> >> A C <agcme@hotmail.com> wrote:<br>> >><br>> >> ><br>> >> > Does dnsmasq use the DNS servers listed in /etc/resolv.conf over those<br>> >> > listed in a DHCP packet? I was forced to use DHCP for my public connection<br>> >> > but I don't want to use the provided DNS servers as they are slower than the<br>> >> > ones I had manually configured.<br>> >><br>> >> I think typically the DHCP client would write /etc/resolv.conf with the<br>> >> information it is provided by the DHCP server. Then dnsmasq looks<br>> >> there, unless you configure it otherwise.<br>> >><br>> >> If you're talking about serving up different DNS servers via dnsmasq's<br>> >> bult-in DHCP server, then take a look at: dnsmasq --help dhcp<br>> >><br>> ><br>> > I was indeed talking about the first situation and not serving up alternate<br>> > DNS servers. As it turns out, my installation is using udhcpd and writing<br>> <br>> udhcpc more likely<br><br>Yes udhcpc, I typoed.<br><br>> > the data to /tmp/resolv.conf while dnsmasq is still looking at<br>> > /etc/resolv.conf. Since I don't have any directives to look at any other<br>> > resolv.conf that I can see, I think it's safe to assume that dnsmasq is<br>> > honoring my own /etc/resolv.conf and ignoring the DHCP packet.<br>> <br>> Sounds like OpenWRT, where /etc/resolv.conf and /tmp/resolv.conf are<br>> actually the same file (symlinked) by default.<br><br>Not on my installation, they are independent files. So it works out.<br><br>> Note that there's a dnsmasq configuration option to have it look at a<br>> file other than /etc/resolv.conf ... surely no dhcp client is going to<br>> tamper with a file named /etc/resolv.dnsmasq for instance.<br><br><br>I should think not but I had to make sure.<br><br /><hr />Get more out of the Web. Learn 10 hidden secrets of Windows Live. <a href='http://windowslive.com/connect/post/jamiethomson.spaces.live.com-Blog-cns!550F681DAD532637!5295.entry?ocid=TXT_TAGLM_WL_getmore_092008' target='_new'>Learn Now</a></body>
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