Tweaking the DNS Server

[Andy Pieters]

Hi
Since our provider suffers from frequent DNS server errors that sometimes last 
more then 12hrs, we have purchased a low budget Dell Celeron computer, 
installed Fedora Core 3 on it and BIND 9, and made the whole setup to skip 
the providers dns altgother.

The resolv.conf for all machines in our LAN (including the DNS server) are now

nameserver 192.168.0.99

This setup has been working for four months now without a single error.

There is one annoyance however that when browsing, users are complaining that 
sites they visited 10minutes ago still take a few seconds to resolve the 
address.

Is there a setting I can use to control how long the server keeps queries in 
its cache?


With kind regards



Andy

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