[Dnsmasq-discuss] How does the "unqualified domains" feature work?
Data Control Systems - Mike Elkevizth
mike at dcsamerica.com
Thu Mar 15 20:39:01 GMT 2007
I'm sorry I wasn't specific enough about "who" the hosts were. The hosts
that I'm having trouble with being extremely slow are all Windows XP
Professional. I have never looked at the ndots option before and this would
certainly be what would be needed to have things work quickly. Do you have
any idea about an option in Windows XP that is similar to the ndots option
Thanks for the response,
From: Simon Kelley [mailto:simon at thekelleys.org.uk]
Sent: Thursday, March 15, 2007 8:13 AM
To: Data Control Systems - Mike Elkevizth
Cc: dnsmasq-discuss at lists.thekelleys.org.uk
Subject: Re: [Dnsmasq-discuss] How does the "unqualified domains"
Data Control Systems - Mike Elkevizth wrote:
> I am wondering how the "unqualified domains" feature works in dnsmasq.
> is it possible to have more than one server specified for a certain
It is possible, but it's not too useful for what you want to do.
> Dnsmasq doesn't seem to complain about this, but it also doesn't appear to
> work as I figured it would. Here is my poblem. I have three servers in
> remote locations - which may loose connection from time to time - that I
> would like to be able to have look up address from each other that they
> leased to clients via DHCP. I tried using the search domain feature on the
> host computers, but that is way to slow. So what I thought was that if I
> could use the unqualified domain feature, it should do the trick. If the
> simple name looked up is not in the local servers leases (or hosts file)
> then it should forward that request to one of the other servers (setup as
> unqualified domain upstream server). The only problem is that I don't know
> if this could cause a type of loop where server A forwards to server B
> then forwards it back to server A and so forth. The only way this should
> happen would be if the server didn't have the name and then I would assume
> the first server would break the loop by timing out. But, would it also
> an upstream query to the third server? The address that the host would be
> requesting would have to be on one of the three or it doesn't exist. I
> see any other way to accomplish what I want, but I'm up for suggestions.
I think that having each site as a different domain would probably work,
but you might have to fiddle with the search order and the "ndots"
option in /etc/resolv.conf to make it work reasonably fast.
> Thank You,
> Mike Elkevizth
> Data Control Systems
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
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