Solving DNS Lag Issue - Gutsy

Martin Walshe plasticman3327 at gmail.com
Thu Oct 25 21:10:54 UTC 2007


Hi,
If you open /etc/dhcp3/dhclient.conf and uncomment the line that begins
prepend domain-name-servers and then add in yours afterwards. This will
force it to use these DNS servers.

You can also try out open dns if you like their servers are 208.67.222.222and
208.67.220.220. To do that add "prepend domain-name-servers 208.67.222.222,
208.67.220.220;"

Hope that helps.

Regards,
Martin.
On 10/25/07, John Mark Walker <johnmark at johnmark.org> wrote:
>
> So after upgrading to Gutsy, I noticed that there was lag when doing a
> domain lookup. I know this has been documented elsewhere, but bear with me.
> I noticed that it's vastly improved when I remove the IP address for my
> wireless router from /etc/resolv.conf - but I don't know how to set DHCP not
> to put in that IP address when negotiating an IP address. Unfortunately, my
> router is pretty braindead, so I can't set it from the dhcpd end, either.
> This never happened with Feisty - I'm assuming this is related to the IPv6
> issue that has been discussed elsewhere?
>
> To get a visual of the difference between the 2 scenarios, see this
> screenshot, where I got HQ to show the difference in lag times when pinging
> a host:
> http://www.hyperic.com/blog/hyperic/wp-content/uploads/hq-ping-view.png
>
> --
> John Mark Walker
> Hyperic Community Outreach
> http://www.hyperic.com/
> --
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> ubuntu-users at lists.ubuntu.com
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>
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