Caching server, forwarder list, dns failure

[Jean-Robert.Huon at alcatel.fr]

phn at icke-reklam.ipsec.nu a =E9crit :
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> Jean-Robert.Huon at alcatel.fr wrote:
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> > Hello,
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> > I looked in FAQ and archives, but I could not find any answer to my
> > problem.
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> > We are running a caching only server with a "forwaders @ip-dns1
> > @ip-dns2" line in the Named.boot file.
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> > @ip-dns1 and @ip-dns2 are the addresses of 2 DNS acting as main/backup
> > servers.
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> > Everything is running well except when the "main" dns (e.g @ip-dns1)
> > fails.
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> > When this failure occurs, and when a new name resolution is asked, Named
> > tries normally the @ip-dns1 dns but seems to be "sticked" forever with
> > it before to decide that this dns shall be down and that it has to try
> > with @ip-dns2.
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> > I would be very interested to know if the behavior of Named upon such a
> > failure is configurable in order that it decides to check the next dns
> > in the forwarders list after a couple of seconds (time limit).
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> You seem to be running bind-4.
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> Bind-8 ( current & recommended version 8.3.3 ) deals much better with
> multiple forwarders; it measures RTT of all forwarders and uses the
> one that answers quickest.
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> > Thanks in advance for any help
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> > regards
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> > Jean-Robert
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Unfortunately, the Bind-4 I use may not be updated to Bind-8 or 9.

Do you have any information about the "multiple forwarders" dealing or a
link upon such a subject ?

Thanks for your help

jean-Robert

> --
> Peter H=E5kanson
>         IPSec  Sverige      ( At Gothenburg Riverside )
>            Sorry about my e-mail address, but i'm trying to keep spam out,
>            remove "icke-reklam" if you feel for mailing me. Thanx.