DNS Server min GHZ??

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I think I can speed up DNS response for users by moving the DNS server
from being shared on an old Exchange server (NT4-server) onto a separate
Linux server. There are 2 or 3 dozen users.
1) What is the min speed machine that would be effective for this type
of DNS server?
2) Would it be better to have a faster ordinary machine or use an old
server class machine ( I have an old Proliant 1500 server around , which
is like a P150 or so).
3) I have a copy of Suse Linux Standard Server (which I haven't used
yet, so I am a Linux virgin), which says it can do DNS. Would this be
suitable?
Thanks all!,
gr

Re: DNS Server min GHZ??


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I think the biggest thing for DNS servers is RAM size to
cache adrrs.  Once they hit disk, they might as well hit
the net.  For good perf, you have to make sure your uplink
is not saturated.  Not easy to assure with ADSL or cable.

-- Robert


Re: DNS Server min GHZ??


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Just about any box that runs fast enough to install a modern Linux
will be fast enough as a dedicated DNS server.  

You might try a caching DNS server each of your clients.  

When my home ISP had a run of nast DNS problems the users on their
support chat group said Treewalk DNS was the hot tip for a solution.
I put it in and in a year it's worked flawlessly.  When the ISP's DNS
was acting up the improvement was dramatic.    

http://www.ntcanuck.com /

On my w2k system it seems to use a wahooping 51K of memory, and the
CPU load has to be modest since it offloads some IP networking when
it's working from cache.

Give it a try on one of your machines. It can't hurt.



--
a d y k e s @ p a n i x . c o m

Don't blame me. I voted for Gore.

Re: DNS Server min GHZ??


gr wrote:
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Probably plenty fast enough for hundreds of users.

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As others have said, you want enough memory to keep all your zones, plus
some amount for caching, but speed doesn't tend to be much of a problem.

-- glen


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